Define pore spaces.

Assertion: The spaces left between soil particles are called pore spaces. Reason: Many organism like bacteria, fungi etc, exist in the soil.

Dead space is

Assertion : Clay soil has high water retention capacity due to high porosity. Reason : The pore space between soil particle are more in clay soil.

Assertion : The matrix used in gel electrophoresis should have controllable pore size. Reason : Agarose concentration can be changed to change pore sizes.

Osteocytes are present in the spaces called

Study of life in outer space is known as

(a) Define Hydrated salt. (b) Define the term: solution.

Define Space Exploration.

Define the term : space lattice.