Diversity In Living Organisms — Science STD 9 — Question

Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?

Which contains more heat, 1kg of ice at 0°C or 1kg of water at 0°C? Give reason for your answer.

Give two reasons for supposing that water is a compound and not a mixture.

A car is moving along a straight road at a steady speed. It travels 150m in 5 seconds:
How far does it travel in 6 seconds?

By which method of separation the volatile component from its non-volatile solute can be separated?

For the symbol H,D and T tabulate three sub-atomic particles found in each of them.

On heating calcium carbonate gets converted into calcium oxide and carbon dioxide:
Can you prepare one acidic and one basic solution by using the products formed in the above process? If so, write the chemical equation involved.