___________ is an example of renewable energy source.

Energy sources that will not last for a long time are

Which of the following will help to save electricity the most ?

Which season is an ideal time to plan for picnics?

Leaves of green plants use sunlight along with water and air to make their food .This process is called Photosynthesis.

__________are always placed on roof tops.

Energy is the ability to do work.

We should not turn off our computers and televisions when not in use.

_______________ use the rays of the sun and concentrate them in a small area to cook food.