Questions

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.

Magma is molten rocks beneath the earth's crust. Hot springs are heated geothermally by underlying magma.

Here all the options given are important functions of Earth's atmosphere.

A rotating column of air is called as a Tornado which extends from the thunderstorm to the ground.

Asterias has bilateral symmetry only at larval stagebut fivefold symmetry (pentamerism, a special type of radial symmetry) as adults.

Nereis do not possess any symmetry elements in their body organisation.