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Fossils

This category is for questions about the bones, fragments, imprints, and other remainders from a different time. The questions and answer you will find here are history set in stone -- our past, immortalized in solid rock. You will also be able to find questions pertaining to the locations of these fossils, how you might identify them, and how they were formed.

3,454 Questions

How is a dinosaur fossil formed?

by needing extra things or less thing in certain places

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by two noobish pee pole

Why does a piece of iron appear red when heated sufficiently and blue at a higher temperature?

It has to do with something called black body radiation. As something gets hotter, the wavelengths of light the it emits get smaller and smaller, which means that the color goes from red to blue.

Look at the Wikipedia chart of color versus temperature to see the color variation as things get hotter and hotter.

Also look at the MHHE.com applet program. On this site, you can change the temperature manually and watch what happens to the spectrum of the light that is emitted.

See the Web Links to the left for more information about black body radiation and how it works.

How do you find requaza in emerald?

To find Rayquaza in Pokémon Emerald, you need to awaken and catch Groudon and Kyogre first. After that, visit the Sky Pillar near Pacifidlog Town. Rayquaza will be waiting for you at the top of the Sky Pillar.

What is gneiss?

The metamorphosis of many igneous and sedimentary rocks results in the formation of gneiss, which usually has a banded structure resulting from alternating layers of light and dark materials, quartz and feldspar particularly, which have separated into parallel layers.

What materials are used to classify objects like plants flowers rocks and even fossil fuels?

Objects like plants, flowers, rocks, and fossil fuels are classified based on their physical and chemical characteristics. For plants and flowers, classification may involve their features, such as leaf shape and flower color. Rocks are classified by their mineral composition and texture. Fossil fuels, such as coal and oil, are classified based on their organic origin and chemical composition.

What is descent with modification?

Descent with modification encapsulates the two key ideas central to the theory of evolution. These are that modifications (mutations) occur, and that these mutations are inheritable (passed on to descendants or offspring).

How to get Blanket importer list in US?

You can access the Blanket Importer list in the US by contacting the US Customs and Border Protection (CBP) agency. The list contains information on companies that have a history of importing goods into the US and can be used to verify the compliance of potential trading partners. You can also consider hiring a customs broker or using online import databases to access this information.

The columns on a periodic table are called?

The columns on a periodic table are called "groups" or "families." Groupings are based on the number of valence electrons elements within the same group have in common, which influences their chemical properties.

Would a die mark on a New Hampshire State Quarter increase its collectible value?

Yes, a die mark or error on a New Hampshire State Quarter could potentially increase its collectible value among certain collectors who are interested in such variations. Die marks and errors are considered unique and rare by some numismatists, making them more desirable for collectors. It ultimately depends on the condition and rarity of the specific die mark on the coin.

What does radiometric dating prove regarding macro evolution?

Off the top of my head it substantiates that if you have 5 transitional fossils showing the slow change of an organism over a few million years that they did come in the order that they appear to, that one did spawn the other.

I think the best evidence of macroevolution is in genetic similarities between all life on earth, common descent.

That you and a chimp are 99% genetically identical, you and a mammal about 90%, and less and less until you get to something like a banana that is about 40-50% genetically identical, because the first cell is over 4/5 of both of our evolution, so we share a few billion years of common ancestry with every other organism on earth. Radiometric dating proves nothing about any form of evolution since it is itself unreliable in the sense that it is based on three unprovable assumptions, and has also been found to be unreliable in the field in various circumstances.

What is the time of useful consciousness at 13000 ft?

It depends on how acclimatized you are. Some people in Tibet live above 13,000 with no ill effects. Other people would have difficulty in functioning, and some may actually die from HAPE, High Altitude Pulmonary Edema within hours, or days.

Of the three resources metallic nonmetalic or fossil fuels which is the most expensive to get out of the ground?

Fossil fuels tend to be the most expensive to extract from the ground, as technologies like drilling and fracking are often required for access. Metallic and nonmetallic resources can also be expensive to extract, depending on the specific mineral and location, but typically fossil fuels involve more complex extraction processes.

What are modern horses evolved from?

modern horses have come through five different stages. The first was a hydraphomia, which existed about 55-40 million years ago. It was only ten inches tall and had four toes on each foot. The next was a mesohippus which were slitely larger with longer legs and only three toes(40-25 million years ago) The third stage was called a merychippus (15-5 million years ago) The last stage was a pliohippus (5-2 million years ago) which had flad grinding teeth and longer legs than the merychippus. The pliohippus also was the first stage to have one solid hoof instead of toes. The Modern horse is called a equus Caballus, it evolved 1.5 million years ago at the end of the last ice age. Hope that helped. info courtesy of a scholastic book on horse. lol

Can you give us some information about beavers?

Beavers like to chew things especially wood and they also need some twigs so that they can build their homes.They also need lots of mud and water to build their homes the entrance to their homes are under water and the home is over the water beavers eat fish and I think they eat scallops.Inside their home there is a tunnel and then a main room!

What do you mean when you say that fossil fuels are nonrewnewable?

Fossil fuels are non-renewable because we don´t make them. We dig them up out of the ground. We don´t know how much fossil fuel we will be able to find in the ground, but we do know that it is not infinite. It takes thousands of years for fossil fuels to be made in the ground, and we are using them at a much faster rate, and we will therefore, someday, run out of it. Renewable energy sources include solar power, which will be available as long as our sun keeps burning. For our purposes, this is pretty much infinite.

What is the best way to form a little league batting lineup when you only have 4 good hitters?

The best approach would be to place your best hitter in the leadoff position to maximize their plate appearances. Then, slot your next three best hitters in the 3rd, 5th, and 7th spots to ensure they have a chance to drive in runs. Fill in the remaining positions with players who can get on base consistently to set the table for your stronger hitters.

What equipment is needed to collect nightcrawlers with electric?

a regular car battery, a couple of strands of insulated wire, and two metal, small diameter stakes or large nails. use one wire and nail to each battery post, stick the nails in the ground a few feet apart and touch the wires to the posts. p.s. if the dirt is dry on the surface the worms will be too deep. wet the ground a couple days in advance, but do not saturate the dirt. night crawlers like damp soil, not mud. (alternate plan; safer, less tools required.- take a very large wood rasp (or file) the bigger the better, stick one end in the ground about two or three inches and hold the other end firmly in one hand. with your other hand, take a metal rod or (i prefer) a lug wrench (a single, not a 4-way) and rub it up and down the rasp very quickly with moderate pressure. i swear this works. maybe its the vibration. not sure. old timers back home taught me this when i was a kid. the old timers said the worms thought it was thunder before a big rain and wanted to get on the surface before they drowned!!! but it works, that's a promise. but, same as before..... if the ground is very dry, it won't work. the dryer the ground is, the deeper down the crawlers go. then nothing but a shovel will get them out. good luck.

What are the fossil fuels?

Fossil fuels are natural fuels formed from the remains of ancient organisms that have decomposed and been subjected to high heat and pressure over millions of years. The main types of fossil fuels are coal, oil, and natural gas, which are non-renewable resources that provide the majority of the world's energy. Burning fossil fuels releases carbon dioxide, a greenhouse gas that contributes to climate change.

How do the fossils found in calvert cliffs provide evidence that the climate and living things in the area have changed over time?

The fossils found in Calvert Cliffs show a shift in climate and fauna over millions of years. The presence of tropical and subtropical marine organisms in the area suggests that it was once warmer compared to the present temperate climate. The diversity of fossilized species also indicates changes in biodiversity and ecosystems over time.

Why is cholesterol so important to your body?

Importance of Cholesterol to the Body



Cholesterol is required to build and maintain cell membranes; it regulates membrane fluidity over a wider range of temperatures. Some research indicates that cholesterol may act as an antioxidant. Cholesterol also aids in the manufacture of bile (which is stored in the gallbladder and helps digest fats), and is also important for the metabolism of fat soluble vitamins, including vitamins A, D, E and K. It is the major precursor for the synthesis of vitamin D and of the various steroid hormones (which include cortisol and aldosterone in the adrenal glands, and the sex hormones progesterone, the various estrogens, testosterone, and derivatives).1


1. http://en.wikipedia.org/wiki/Cholesterol

How to determine an aircraft age?

It is usually difficult to tell an aircraft's age by looking at it because, to be in the best flying order, they always look like new. One way to tell age is to look at the type of aircraft it is. I f the type or variant is no longer in production than you have a time fame. However, there is a much more accurate way if your country offers this service. If you know the tail number (it is called a tail number in the U.S) which is ultimately the number on the tail you can log on to the FAA website (again, or your own countries) and enter the number. If you enter the number correctly you will get a large amount of information about the aircraft. Including the day it completed production.

For more info visit: www.aviationencyclopedia.buildmy.ws/Boeing/Index.html

What argillaceous rocks contain cordierite?

Argillaceous rocks that contain cordierite include pelitic schists, hornfels, and some metapelites. Cordierite is a common mineral in metamorphic rocks formed under high-pressure and high-temperature conditions.

What are the three categories of methods to ensure reliable switching in series configuration?

The three categories of methods to ensure reliable switching in series configuration are: 1) Mechanical methods, such as using high-quality switches and relays, 2) Electrical methods, such as providing adequate insulation and protection circuits, and 3) Monitoring and control methods, such as using feedback systems to detect and prevent switching failures.

Who is most likely to become anorexic?

It is usually people with low self esteem, people who have had a lot of bad relationships so they try too hard to be accepted, or people who don't see that movie stars and models are unnaturally thin, so they think they are fat.

Why is it necessary to step footings on a sloping site?

Footings, the concrete pads upon which foundation walls are built, must be located beneath the frost line in order to prevent a building from heaving when the ground freezes. If the site is sloped maintaining a constant elevation for the footings would either cause the footings to be above the frost line or significantly deeper than the frost line at one end of the building. Stepping the footings enables them to follow the slope of the site and remain below the frost line without going too deep under the ground. It allows the foundation wall heights to be minimized because the footings are kept as close to the surface as possible.