Fossils are remains, tracks, impressions, or traces of organisms that existed in the past. These are the remains or impression of prehistoric animals and plants that were embedded in the rocks.These remain also embedded in volcanic ash, sedimentary rocks, peat, amber, etc ., and get preserved and are an important tool for evolutionary studies.

Fossils are the remains or impression of prehistoric animals and plants that were embedded in the rocks. The study of fossils is known as palaeontology. It is a branch of science in which age, formation, and significance of fossils are being studied. The age of fossil if determined by performing a method called radiometric dating.

Fossils are the remains or traces of ancient life that have been preserved by natural processes, from spectacular skeletons to tiny sea-shells. A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.

Match the suitable renewable and non-renewable resources. Sources A B C Renewable Coal Wind Petroleum Non-renewable Hydrogen Natural gas Solar energy

Renewable sources: Wind, solar energy, hydrogen. A renewable resource, also known as a flow source, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale. Non-renewable: Coal, petroleum, natural gas. A non-renewable resource (also called finite resource) is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. An example is carbon-based fossil fuels.

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are the remains of plants or animals that got preserved over millions of years.

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Important Questions on Heredity and Evolution

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Explain the process of fossil formation. By which method can the age of a fossil be determined?

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Explain why we are looking at the alternative sources of energy.

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Science>Biology>Heredity and Evolution>Evolution

What is fossil? Write the name of two vestigial organs found in the human body.

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Which one of the following is not a conventional source of energy?

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Science>Biology>Heredity and Evolution>Evolution

What are fossils? What do they tell us about the process of evolution?

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Science>Biology>Heredity and Evolution>Evolution

Define fossils.

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Science>Biology>Heredity and Evolution>Evolution

What is fossils?

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Science>Biology>Heredity and Evolution>Evolution

What factors could lead to the rise of new species?

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Science>Biology>Heredity and Evolution>Evolution

What are fossils?

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Science>Biology>Heredity and Evolution>Evolution

Explain the two methods to estimate the age of fossils.

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Science>Biology>Heredity and Evolution>Evolution

Answer the following question:
Human tail bone is a vestigial organ. Explain.

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Science>Biology>Heredity and Evolution>Evolution

Can any sources of energy be pollution free? Why and why not? State two limitations of the energy that can be obtained from the Oceans.

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Science>Biology>Heredity and Evolution>Evolution

The correct statement about Neanderthal man is :
(the first human like hominid, started agriculture, ate meat and walked erectly, buried
the dead)

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Science>Biology>Heredity and Evolution>Evolution

Name one source of energy.

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Science>Biology>Heredity and Evolution>Evolution

Answer the following:

Which process can be illustrated by the example of the evolution of broccoli from wild cabbage?

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Science>Biology>Heredity and Evolution>Evolution

Answer the following:

Name:

Organs have different structures but perform the same function.

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The fossil of a Dinosaur was found only a few years ago in the Narmada valley:
(a) What is a fossil?
(b) Give two ways by which you can find the age of a fossil.

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The fossil dating technique is used to find which among the following?

MEDIUM

Science>Biology>Heredity and Evolution>Evolution

Match the suitable renewable and non-renewable resources.

Sources	A	B	C
Renewable	Coal	Wind	Petroleum
Non-renewable	Hydrogen	Natural gas	Solar energy

EASY

Science>Biology>Heredity and Evolution>Evolution

Why are we looking at alternative sources of energy? Name a non-conventional source of energy and its two advantages.

are the remains of plants or animals that got preserved over millions of years.

Important Questions on Heredity and Evolution

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