Questions

Primary productivity refers to plants that make their own food using sunlight, water and availability of nutrients. Hence, they are not limited by time.

Lens is made up of Flint glass.

Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH−.

Properties:

1. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air.

2. NaOH is insoluble in ether and other non-polar solvents.

3. It is an odorless compound.

Uses:

Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner.

One atomic mass unit (AMU) is equal to the one-twelfth the mass of one carbon-12 atom.

Economics is the study of how society manages its scarce resources i.e, Limited wants & unlimited resources.

Uttar Pradesh state government to install 221-Metre Bronze Statue Of lordRam In Ayodhya.