Improvement In Food Resources — Science STD 9 — Question

Write the full forms of the following:
CNG

The molecular formula of glucose is C₆H₁₂O₆. Calculate its molecular mass. (Atomic masses: C = 12 u; H = 1 u; O = 16 u)

Do pure substances always have one phase?

Name these force:
The force which wears away two surfaces as they move over one another.

Where does ATP synthesis occur in mitochondria?

What name is given to the sound waves of frequency too low for humans to hear?

Stat the chemical symbols for the following elements:
Sodium, Potassium, Iron, Copper, Mercury, Silver.

Name the organism used in the preparation of vermicompost.

Name the process associated with the following:
Fine beam of light entering through a small hole in a dark room, illuminates the particles in its paths.