How long has cheerleading been going on?
Cheerleading has been around for over 100 years, with its roots dating back to the late 19th century. It began as an all-male activity at the collegiate level before evolving to include both men and women at various levels of competition and performance.
Biogeochemical cycling ensures that?
Biogeochemical cycling ensures that essential elements, such as carbon, nitrogen, and phosphorus, are recycled and redistributed in ecosystems. This process allows nutrients to be reused and minimizes the loss of resources from the environment. It helps maintain the balance of these elements in various ecosystems, supporting life processes.
What medicines can you find in the tropical rainforest?
Many, too many to list here. Please see links. Here are a few:
MEDICINAL DRUGS DERIVED FROM RAINFOREST PLANTS
Quinine
cinchona tree (S. America)
treat malaria
Neostigmine
Calabar bean (Africa?)
used to treat glaucoma and provides a blueprint for synthetic insecticides
Novacaine, cocaine
coca plant (South America)
local anesthetic; cocaine served as a blue print for less toxic, less addictive anesthetics
Turbocuarine
curare liana (America)
Originally used by natives to poison arrow tips. Muscle relaxant for surgery; to treat muscle disorders like Parkinson's disease and multiple sclerosis. Cannot be synthesized in the lab.
vincristine, vinblastine
rosy periwinkle (Madagascar)
pediatric leukemia, Hogkin's disease
Cortisone
wild yams (Central America)
active ingredient in birth control pills
Which part of the world do tropical cyclones usually take place?
Tropical cyclones typically occur over tropical waters between 5 degrees and 22 degrees latitude, except for in the southeast Pacific and south Atlantic. They commonly occur off the northwest coast of Western Australia, in the Gulf of Carpentaria and in the Coral Sea.
How does deforestation affect farming?
There are positive and negative impacts.
On the positive side, industries such as logging, mining or farming stand to gain from the forests. In logging, loggers basically cut down trees for wood for income. In mining, miners would clear large areas of forests to access the minerals beneath the ground, which can be profitable as well. Farmers clear land to plants their own crops, as well as let farm animals roam in the forests that are cleared, also for monetary gain.
Towns can be built after forests are cleared for housing people to prevent overpopulation in a certain area due to rapid population growth. As such, infrastructure such as roads, rails, airports etc have to be built to serve residents living in the area, clearing more forests to bring convenience to people.
On the negative side, the Earth would be gradually heating up. Trees help take in carbon dioxide and release oxygen during photosynthesis. With less trees, less exchange of the gases would take place. Carbon dioxide, a greenhouse gas, would then contribute to global warming.
Deforestation causes the topsoil to be washed off, resulting in infertile land for future growth of trees. And these sediments are washed into the water bodies, resulting in water pollution, which kills off marine life. This makes our water unsuitable for drinking as it is contaminated.
When forests are cleared by burning, it causes air pollution due to carbon dioxide being released into the air through burning. At times, when the burning gets out of control, the pollution gets much more worse. This does not only contribute to global warming, but affects our health too.
Do forest fires move faster downhill or uphill?
Fires move fastest uphill because heat rises. Experiment: Light a match and hold it with the tip up and time how long it takes the flame to move halfway down the matchstick. Then light another match, hold it tip down and time how long it takes the flame to move halfway up the stick. Be careful not to burn yourself!
uphill, for an experiment look for "Do forest fires move faster uphill or down hill
How does nitrogen effect people?
its affects people because of the gases it contains and also all the other elements its affects people because of the gases it contains and also all the other elements its affects people because of the gases it contains and also all the other elements its affects people because of the gases it contains and also all the other elements its affects people because of the gases it contains and also all the other elements its affects people because of the gases it contains and also all the other elements
How do you reduce carbon dioxide levels in the atmosphere?
More Information:
Carbon dioxide (CO2) is constantly being added and removed from the atmosphere by various processes. This is called the carbon cycle.
Currently, human emissions of CO2 are accumulating in the atmosphere, because the total sources of CO2 are greater than the amount of CO2 being removed by carbon sinks.
The easiest and cheapest way to correct this imbalance is for humans to stop adding CO2 to the atmosphere. To do this we need renewable energy instead of energy produced from fossil fuels.
Renewable energy from wind, solar and other sources does not directly remove CO2 from the air. Instead, it replaces fossil fuel power, and this reduces CO2 emissions, which in turn reduces the amount of CO2 in the atmosphere.
Plants, trees and forests take carbon dioxide out of the air. To reduce CO2 levels we can stop deforestation and plant billions of trees all around the world (afforestation).
In addition, there are proposals for removing CO2directly. These include biochar, artificial trees and scrubbing towers, and ocean nourishment. To do all this, we need to begin now.
Plant more trees and plants! Stop cutting down trees without replacing them!
How much carbon dioxide is produced a year?
The oceans contain 37,400 billion tons (GT) of suspended carbon, land biomass has 2000-3000 GT. The atmosphere contains 720 billion tons of CO2 and humans contribute 40 billion tons per year. The oceans, land and atmosphere exchange CO2 continuously so the additional load by humans is small, on an annual basis.
Over the past century humans have, however, raised atmospheric CO2 levels from 290 ppm to nearly 400 ppm. At the present rate we will pass 500 ppm before 2050, an increase of nearly 60%.
How do you calculate your carbon footprint?
A carbon footprint is a metaphorical representation of how much greenhouse gas a person produces in their life. This can include how much they recycle, or what type of light bulbs they use in their home.
Why did the tree on maungakiekie get cut down?
The tree on Maungakiekie, also known as One Tree Hill, was cut down in 2000 due to repeated attacks and damage inflicted upon it by various individuals over the years. It was seen as a symbol of cultural and historical significance, and its removal was met with controversy and sadness.
Factors responsible for inflation?
Inflation can be caused by factors such as excess demand, cost-push inflation from rising production costs, excessive money supply growth, and external shocks such as oil price increases. These factors can lead to an increase in overall prices of goods and services in the economy.
How do you cut a large mirror down to size?
If you are familiar with a glass cutter, use that to resize the mirror. My best suggestion would be take it to a glass shop and let them do it. They can bevel the edges and its a whole lot safer.
What are the good effects of chemical change?
The 5 good effects are
PHOTOSYNTHESIS
RIPENING
GROWTH AND REPRODUCTION
STORAGE OF STARCH
FORMATION OF PROTEINS
HOPE IT HELPED
How does photosynthesis affect global warming?
Photosynthesis is a process by which plants use sunlight, water, and carbon dioxide to produce carbohydrates, and other biological compounds, which reduces the amount of carbon dioxide in the air. This is the difference between plants and animals. The carbon dioxide is stored in the plants until they decompose or are burned. So, for example, each fall when the trees lose their leaves and the plants die the level of carbon in the atmosphere goes up. The rest of the tree, bark etc., does not continue to absorb carbon. Plants only take in carbon so long as they are growing and not after they have reached their natural height. Planting trees and other plants is one component of the solution to global warming, but the number of plants we have now cannot consume more carbon than they already do, and there is some evidence that warmer temperatures make photosynthesis more difficult.
How does recycling save trees?
Recycling is really good for the environment because you can reuse things like binder water bottles etc. Recycling saves the resources, it saves money, saves energy and, saves the trees. The material is really useful because recyclables are our daily needs in the world today. REDUCE, REUSE and, RECYCLE!
Paper gets crushed and flat and turns the same again
What factors were responsible for the growing wealth and prosperity in the seventeenth century?
In 17th century Europe, quite a few factors were responsible for a general trend of increased wealth and prosperity -- despite the wars and other social problems that afflicted various European nations at the time. For one thing, the Scientific Revolution spread a new spirit of innovation and discovery throughout Europe's intellectual centers. For another thing, King Louis XIV reigned in the continent's most powerful nation, France. For yet another, the rich metal-deposits of the Americas began to be systematically mined by Spain, in particular, which introduced vast amounts of material wealth into European coffers.
The net matter of the universe is zero because energy cannot be made or destroyed.
The matter is made up of energy, and the energies of the universe cancel out each other because of their opposite directions. The total energy of an atom should be zero, this is why an unstable atom takes electron(s), so that it become stable (net energy=0).
What are the vegetations for a tropical rainforest?
Some common vegetation in a tropical rainforest includes dense tree canopies, epiphytes like orchids and bromeliads, lianas, ferns, and a variety of broadleaf plants. The forest layers range from emergents towering above the canopy to the understory plants struggling for sunlight on the forest floor. These diverse plant species contribute to the rainforest's high levels of biodiversity.
it may simply be old. remove it completely (roots included) and plant a new tree
or you could feterlize it with miricle grow, trim the branches and water vigrously for about a week before you take any dramstic measures
How do you produce strong magnetic repulsive force?
To produce a strong magnetic repulsive force, you can increase the strength of the magnets involved, increase the distance between the magnets to reduce the attractive force, or align the poles of the magnets so they repel each other. Using electromagnets with a high current and coil winding density can also generate a strong repulsive force.
What effects does coke have on people?
Cocaine: extreme stimulant, causing intense rush of energy and agitation; over time, it destroys the brain and -- if taken by snorting -- does massive damage to the nasal passages. It IS addictive, and addicts will do great harm to themselves and others (a) in withdrawal or (b) to avoid going through withdrawal. And (c) while high on coke again, and again, and... In fact, it's how a lot of great entertainers (like John Belushi) have died.
Coca-Cola: caffeine here is the stimulant (except in decaf); sugar is another (except in diet); still, it's just soda and it tastes good. And it's a lot better than lines of white powder up one's nose.
Remember those old public-service TV ads: "This is your brain. This is your brain on drugs. Any questions?" Thought not; you're probably way too young. But they were well-known in the 1980s (which is probably when you were born, unless you're even younger!), and I think some of them can still be accessed via the Internet. Might be useful to Google 'Public Service Ads, War On Drugs' or somesuch. In fact, Google 'Cocaine' too. But don't use it. As for soda, Coke or Pepsi are okay, in moderation. But don't try using cocaine "in moderation," because drugs like that never work that way; that's why they're illegal.
As for the comment below: illegal drugs are worse than soft drinks. You wrote your whole answer in the font used for headers. And your spelling is so bad that the average coke-head or crack-smoker would seem like a Harvard grad by comparison. I find it difficult to believe you are literate enough to read the label on a soda bottle. As for street drugs, they don't come with labels, not that I'd know. I've actually never used them. As for the "health nut" vibe that loftily preaches that people who "use" soft drinks are just as bad as drug addicts, save it. I have reason to doubt you do much thinking, ever. On the issue(s) of morality and conscience, I have no comment.
As for the comment above: The "average coke-head" probably did go to Harvard. It's a party drug. You know, the kind of thing people try and become addicted to in college? It's not just stupid people who use drugs; people from all social classes and who have gone through all levels of education have made their mistakes. And when you say you've never used any sort of illegal drug, what makes you feel like you're qualified to comment on the effects of them?
What effects do typhoons have on people?
Typhoons can be devastating for humans, because they cause widespread destruction. In areas where mass media is not common, the people are often unaware of the storm until it is too late to evacuate.
How can you calculate the amount of carbon dioxide emitted from the burning of an object?
This can be done precisely under certain conditions, but in practice things aren't so simple. You need to know the exact chemical formula of the thing being burned (this can be difficult if you are burning wood, for instance, which is a complex mixture of thousands of compounds). You also have to assume that the combustion is complete -- in other words that all hydrocarbons are completely converted into carbon dioxide and water, which is not always the case in normal burning situations. The actual reactions that occur while burning something are very complicated in fact, but to a close approximation, you can figure out the amount of CO2 produced in the following way:
First, write the balance equation for the combustion of the hydrocarbon. The reactants are the hydrocarbon itself and oxygen gas (O2). The products are carbon dioxide and water. See the Related Questions to the left for how to do this.
Then use stoichiometry to figure out for a certain amount of hydrocarbon burned how much CO2 you will produce. See the Related Questions links to the left for how to do this also.
See the Related Questions links to the left for detailed instructions on how to do each of these steps! Note that in both of the related questions, example problems have been worked out using the combustion of a hydrocarbon! Most of the work is done for you already! Just see the examples in the linked questions to the left.