light-reflection and refraction — Science STD 10 — Question

Define terms: Ores

Would you be able to check if water is hard by using a detergent?

How do germ cells make a single set of genes from the normal two copies in all other cells of body?

Name the structural and functional unit of nervous system.

Which treatment do you suggest to a patient whose both kidneys have stopped functioning?

Write the formula of rust.

Name two metals which are found in nature in the free state.

Why the lungs always contain a residual volume of air?

State the effect on the strength of the magnetic field produced at a point near a straight conductor if the electric current flowing through it increases.

What is the function of guard cells?