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Pollution
Pollution is the process of giving out contaminants such as smoke and carbon dioxide, and too much of a certain product such as light, heat and sound that both cause harm to the environment.
8,185 Questions
Marine and fresh waters teem with life, much of it microscopic, and most of it harmless; in fact, it is this microscopic life on which all aquatic life ultimately depends for food. While most of these species of phytoplankton and cyanobacteria are harmless, there are a few dozen that create potent toxins given the right conditions. Harmful algal blooms may cause harm through the production of toxins or by their accumulated biomass, which can affect co-occurring organisms and alter food-web dynamics. Impacts include human illness and mortality following consumption of or indirect exposure to HAB toxins, substantial economic losses to coastal communities and commercial fisheries, and HAB-associated fish, bird and mammal mortality's To the human eye, blooms can appear greenish, brown, and even reddish- orange depending upon the algal species, the aquatic ecosystem, and the concentration of the organisms.
No deaths of humans have been attributed to Florida red tide, but people may experience respiratory irritation (coughing, sneezing, and tearing) when the red tide organism (Karenia brevis) is present along a coast and winds blow its toxic aerosol onshore. Swimming is usually safe, but skin irritation and burning is possible in areas of high concentration of red tide.
In 1972 a red tide was caused in New England by a toxic dinoflagellate Alexandrium (Gonyaulax) tamarense.
In 2005 the Canadian red tide was discovered to have come further south than it has in years prior by a ship called The Oceanus, closing shellfish beds in Maine and Massachusetts and alerting authorities as far south as Montauk (Long Island, NY) to check their beds. Experts who discovered the reproductive cysts in the seabed warn of a possible spread to Long Island in the future, halting the area's fishing and shellfish industry and threatening the tourist trade, which constitutes a significant portion of the island's economy. (Source Wikipedia)
How does temperature affect cloud formation?
Clouds form when water vapor pressure exceeds to its saturation level! And then the vapor or water droplets... condensate. so clouds indicate that some kind of cooling and relating to condensate to what has happened= LOW AIR PRESSURE!!!!!!
What is the evidence that global warming is a real process caused by human activities?
Global warming is certainly a real process. The year 2010 had the warmest global average temperature on record, fractionally warmer than 2005 and 1998, but as the difference is slight, the three years are regarded as the equal hottest. The past decade was the warmest since instrumental measurement began in 1850, and the ten warmest years since 1850 have now all occurred since 1998.
It is also known that the temperature rise that the world has experienced is consistent with the rise in atmospheric carbon dioxide levels, from the normal range of 260-280 parts per million (ppm) to 380 ppm. Scientists say that because carbon dioxide is a greenhouse gas, it is this increase that has caused average global temperatures to rise. So the question is whether this increase in atmospheric carbon dioxide and the resultant temperature rise are caused by human activities, and are therefore anthropogenic.
Scientists have been able to use isotope comparisons for C12, C13 and C14 ratios, to prove that the increase from 260-280 ppm to the present 380 ppm of atmospheric carbon dioxide is entirely due to human activities. This joins the dots and tells us that global warming is not only real, it is caused by human activities.
The majority of the world's climate scientists agree that the temperature of the world has been gradually rising for the past 150 years, since the time man started seriously burning coal and oil.
NASA (National Aeronautics and Space Administration) states on its website that the measurable evidence is in the following:
- Sea level rise
- Global temperature rise
- Warming oceans
- Shrinking ice sheets
- Declining Arctic sea ice
- Glaciers retreating
- Extreme Climate Events
- Oceans become more acidic
See the NASA weblink below.
Try Al Gore's Documentary: An Inconvenient Truth
Usually, but there's not as much as you might think, given its importance to the carbon-oxygen cycle of life on Earth. It averages about 400 ppm, or about 2/5 of 1% of the atmosphere (but this varies greatly in some areas, including dense human civilization). As a byproduct of fossil fuel combustion (greenhouse gas), it is under scrutiny as a major moderator of Earth's climate. Since it is soluble, the oceans may contain up to 50 times more carbon dioxide than the air.
What effect does acid rain have?
Burns your skin. Kills plants.
The biggest effect of acid rain is on lakes and streams. It makes the water in them acidic. Fishes are not able to survive in this acidic water. This causes damage to trees. Acid rain also accelerates the decay of building materials and paint. The pollutants generated by acid rain also harm the human health.
What effect does acid rain have on rocks?
Carbonic acid is the result of carbon dioxide dissolved in water, When carbonic acid is added to a rock and it bubbles, the rock is a carbonate.
Rain can contribute to pollution by washing pollutants on the ground into water sources like rivers and lakes. This process is called stormwater runoff, and it can carry trash, chemicals, and other contaminants into the environment. Additionally, rain can interact with certain pollutants in the atmosphere to create acidic rain, which can harm plants, animals, and infrastructure.
What are the preventive measures for global warming?
1:- Educate the local people about the problem.
2:- Avoid those sources which are responsible for the production of carbon dioxide
3:- Plantation of green plants
4:- Avoid green felling
Does burning pine mountain logs cause pollution?
Burning pine mountain logs can release pollutants such as carbon monoxide, volatile organic compounds, and particulate matter into the air, contributing to air pollution. It is important to ensure proper ventilation and use of clean-burning practices to minimize the environmental impact of burning logs.
How many cars would it take to equal the amount of carbon dioxide from a 757 jet engine?
A 757 using 60-80 tons of fuel per day produces 200-300 tons of CO2. A typical car produces 3 tons per year of CO2, therefore one 757 produces the same as 20,000-30,000 cars.
How many types of pollution are there?
Some forms of pollution are
Air pollution
water pollution
soil pollution
noise pollution
light pollution
Mostly used form of the polythene is polythene bags. That is why the matter of concern is more on the uses of polythene bags. Polythene bags can best be defined as a non-biodegradable substance that is used by people as packing materials. Despite the fact that they are cheap as well as light, they are hazardous in the following ways: The fact that they are non biodegradable makes them hard to dispose and as a result, they can act as breeding places for many of the disease germs which, sooner than later cause an epidemic in the surrounding people. The fact that they are very light also makes it very easy for them to be blown from place to place and as a result, the unending littering of the environment. That means waste is left in public places or road sides. This destroys the beautiful scenery. These polythene bags have over time been proven to be environmentally unfriendly considering the time taken for their decomposition. As a result of this time spun they can cause further problems like blocking water penetration into the soil which in turn affects food growth and development. Death of domestic animals specially the cows and the goats after eating the polythene bags. This clearly shows that waste if mismanaged can be very dangerous to the environment. During the rainy days these polythene bags blocks the drainage system of the city. Some times these blockage cause for blocking of whole drainage system and results in to floods.
Explain the effects of air pollutants on the environment?
Air pollutants can lead to a range of negative impacts on the environment, including smog formation, acid rain, and damage to ecosystems. Pollutants such as particulate matter and nitrogen oxides can harm both plant and animal life, while also contributing to global climate change. Additionally, air pollutants can degrade air quality, leading to respiratory problems in humans and wildlife.
How does a low pH level in the soil effect plants?
A low pH is an acidic pH. It can do many things:
* Impact the ionic balance to the soil. In clay this destroys the soil structure * Leach nutrients out of the soil and allow them to flow down out of reach f the plant roots * Dissolve metals from the soil and make them available for absorption into the plant * Drive away sil organisms which are symbiotic with the plant * Change the osmotic pressure of the groundwater
What are the most important greenhouse gases?
There are many gases which contribute to the greenhouse effect. Some have a more potent effect than others. The following are considered to be greenhouse gases; the number after the name indicates the equivalent greenhouse gas effect compared to the carbon dioxide effect (the principal man-made greenhouse gas):
Water vapor
Carbon dioxide
What affects do ascorbic acid have on the environment?
Ascorbic acid can have negative environmental impacts if not disposed of properly. When released into water systems, it can contribute to water pollution and harm aquatic life. Additionally, the production of ascorbic acid can generate waste and emissions that contribute to air and water pollution.
What gives off greenhouse gases?
Any burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity releases carbon dioxide (CO2).
Cattle rearing, rice paddy farming and melting tundra and lakes emit methane.
Use (and overuse) of agricultural fertilizers emit nitrous oxide.
Leaks from car and home air conditioners release CFCs (chlorofluorocarbons).
Working principles advantages disadvantages and limitation of venturi scrubber?
A Venturi scrubber is a wet scrubber that essentially washes gases or particulates out of a gas stream.
To accomplish this removal it is necessary to mix the "dirty" gas with fine droplets of the fluid used to remove them. A Venturi accomplishes this by passing the washing fluid through a tapered neck in the Venturi nozzle introducing the gas and liquid into the system . The high speed gas breaks the fluid into tiny droplets and mixes them with itself. The fluid picks up the impurities and coalesces into larger droplets which either fall out of the gas or are collected on impingement plates or packing. The purified gas leaves the system, the dirty fluid is sent for disposal or purified for reuse.
Why does water travel down a string?
Water travels down a string due to capillary action, which is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. This occurs because water molecules are attracted to the material of the string, causing them to climb up the surface tension of the string and flow downward.
Coronal Mass Ejections usually cause magnetic storms, usually near the Earth's northern and southern poles. If you've ever heard of the Aurora Borealis (the Northern Lights), this is what I'm referring to.
Some more severe effects on the earth (in the case that the CME is aimed somewhat directly at earth), are disruptions and failures in our telecommunication networks and power grids. (Satellites are a big concern) This includes the internet, cellphones, television, radar, and satellite reconnaissance.
All of this can be harmed or even destroyed by such an event.
Carbondioxide is a warmer gas which can be prooved by saying that millions of years ago the ice sheets that were covering the land melted due to lare increase in carbon dioxide from volcanic eruptions .as this gas is warmer it melted away the ice .but now as we are cutting more and more trees ,the carbon dioxide levels are increasing and thus it is causing global warming.
How can you stop acid rain as a student?
Acid rain is rain or any other form of precipitation which is unusually acidic. It has harmful effects on plants, aquatic animals and buildings. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the atmosphere to produce acids. In recent years, many governments have introduced laws to reduce these emissions.
A student can help stop acid rain by getting some friends to make posters to post around there school and community. After that try to see if you can get adults' support and see if you write a letter to your government. and see if they can make laws about company pollution which causes acid rain. Try to get them to change so that we won't have so much acid rain.
How do lemmings hurt the environment?
lemmings are beautiful creatures to begin with, lemmings toots have been added to common house-hold medications, such as the common pain killers Tylenol, Asprin, and Motrin. however, the beauty of wild lemmings makes up for their "smelly" atributes to society. I often find myself day-dreaming in my labratories in the frigid artic circle about these charming creatres.
How can people introducing animals and plants into the ecosystem effect the ecosystem?
It can either help it or completely ruin it, you probably have/going to learn/learned it in seventh grade.
If you introduce some animals, they will completely take over the habitat, such as Snakeheads in the Chesapeake bay. When they were introduced, they completely took over the environment by rapidly reproducing and eating all of the fish. This is called an invasive species. Invasive species are exotic animals that come from another country/state. Exotic species are completely fine, they are introduced and there is nothing wrong, they may even help the environment.
Answered well enough?
What problems can be caused by non-biodegradable pesticides?
Non biodegradable pesticides don't rot, so they stay in the soil forever (well not forever, but a long time)
This wouldn't be a problem if you were a traditional farm, but organic farm ban the use of pesticides. This means that they would not be able to use this land to grow their healthier crops. This also means that the animals of any farmer - traditional or organic - may be able to contract diseases due to eating the harmful chemicals in pesticides in their feed - potentially grass, or other herbivorous food items...
