Among the following gases which one is primarily needed for photosynthesis?

Why are the leaves of the plants green in color?

Primarily, the energy in our food comes from

Identify the pigment in plants responsible for capturing the solar energy.

Plants give us

Organisms require energy to perform

Which organisms use sunlight to make their food?

Sugar present in our food is known as

The main source of energy is

We get solar energy which can be put to many uses. 

The energy that the earth receives from the sun is known as

Solar energy gives out energy in the form of light and heat.

The air above the ocean and lakes is dry.

The amount of water vapor in the air is calculated as humidity.

The amount of rainfall is measured by using a hygrometer.

The humidity in deserts is typically very low.

It is not easy to walk against the wind on a windy day.

Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:

	Sand	Water
Before placing the bowls in the sunlight	370C	300C
After keeping the bowls in the sunlight for one hour	370C	320C
After keeping the bowl inside the house for one hour	310C	310C

How much does the temperature increase of the sand after an hour in the sun?