Q. Humans belong in which of following epoch?

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Q. How many million years old fossils of eukaryotes have been found?

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Q. Event during which a large number of species go extinct is called

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Q. Mitochondria and chloroplast replicate by which of following process?

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Q. Another supercontinent has been expected to form in how many million years from now?

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Q. How many million years ago did therapsids exist?

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Q. Which of following is earth's youngest mountain range?

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Q. Which of following does not belong to first three eons?

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Q. For which of following incisor teeth are used?

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Q. Over past 1.5 billion years how many times a supercontinent has been formed?

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Q. Which of following is most likely to be genetic material?

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Q. How many million years ago did late cynodonts exist?

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Q. Layered rocks formed when prokaryotes bind thin films of sediments together is called

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Q. Which of the following is released when a Hydrogen atom loses an electron?

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Q. Which of the following is an example of amphoteric molecule?

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Q. Acids that lose a proton easily are weak acids.

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Q. What is the full form of pH?

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Q. A solution having a pH of 6 has a proton concentration of _______

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Q. What is the concentration of pure water?

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Q. In presence of an acid, amino group can be ____________

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