Question
The oldest type of energy known to man is
–Solution
The oldest energy known to man is Geothermal energy. This geothermal energy originates from the original formation of the planet, from radioactive decay of minerals, and from solar energy absorbed at the surface. It has been used for space heating and bathing since ancient Roman times, but is now better known for generating electricity. Geothermal energy is thermal energy generated and stored in the Earth.
Which of the following process is involved in the manufacturing of iron from iron-ore?
What type of immunity is provided by vaccination?
An ice block with a piece of lead embedded in it floats in water. If ice melts the water level –
Which of the following is a chemical change?
India tops the world in production of
Intensity of gravitational field of earth is maximum at –
Which vitamin helps in improving night vision?
Food cans are coated with tin and not with zinc because
A spherical conductor of radius R is surrounded by a concentric spherical shell of radius 2R. The capacitance of this system is:
Which vitamin is produced in the skin when exposed to sunlight?
Relevant for Exams:
