If a mirror is placed on the line XY, then which of the

_________ is a technique where the plants are grown with their roots suspended in the air.

The final image in a simple microscope is –

An aircraft can perform aerobatic manoeuvres in a vertical loop because of-

Which of the following organs is capable of removing unused or damaged platelets?

Which of the following organelles is NOT bound by a membrane?

The oldest type of energy known to man is –

Noise is measured in –

Inactive Nitrogen and Argon gases are usually used in electric bulbs in order to

Which among the following nutrients is essential for the normal functioning of the thyroid gland?

Which one of the following gases is supporter of combustion?