Science True-False

Nuclear fusion reactions are the source of energy in the sun and other stars.

The energy sources that can be regenerated are called renewable energy sources.

The assembly of the solar cell may be pollution free but the actual operation of it may cause some environmental harm.

The potential energy of flowing water gets transformed into kinetic energy by collecting the water in dam.

The nuclear bomb is embedded in a deuterium and lithium containing substance.

Nuclear energy is the best alternative of fossil fuel because of its environment friendly nature.

The level of water in the sea rises and falls due to the gravitational pull of the moon on the spinning earth.

Biogas is derived totally from animal biomass.

Fossil fuels are the major fuels used for generating electricity.

In solar cookers, a plain mirror is used to converge the sunlight.

The air pollution is caused by burning of fossil fuels.

Submerged vegetation rots under anaerobic condition producing large amounts of methane.