Size of scattered light depends on wavelength of light and size of scattering particle.

The oxygen gas produced during photosynthesis is released into the surroundings through the stomata. Stomata are also called site of gaseous exchange.

Non-metals are electro negative elements because they can form negative ions by gaining electrons. Metals are electro-positive.

The mineral acids are those which are obtained from minerals and do not contain carbon. E.g., HCl, H₂SO₄, HNO₃, etc.

When it is heated, it disintegrates into sodium carbonate(Na₂CO₃), water and carbon dioxide.