MTE2: The subsolar point

MTE2

            The subsolar point is the specific point on the earth surface that receives the direct or much energy during a particular time within the calendar year. It also refers to the point at which the sun is at its zenith. Subsolar point is the point when the sun is directly overhead.
Which latitude receives more energy on June 21st? Why? 37*N or 23.5*N

The latitude that receives more energy on June 21st is 23.50 N. This is because the sun is directly over the tropic of cancer (23.50 N). The sun’s rays are directly overhead the tropic of cancer that passes through Sahara Africa, Mexico, and India.
Which latitude receives more energy on March 21? Why? 65*N or 10*N?

The latitude that receives more energy on March 21 is 100 N. This is because the sun is overhead equator hence the realization of equinox. Equinox occurs two in one year thus the sun is overhead equator on two occasions (March 21 and September 22).
When ice melts, what happens?

As ice melts, bonds are broken thus the essence of disorder and movement of the molecules in the opposite direction from the optimum positions. The melting of ice results from the absorption of much energy influencing the movement of the molecules from their optimum states.
When water evaporates, what happens?

Water evaporates after accumulation of much energy in excess of the boiling point that is usually approximated at 1000 C at the sea level. The absorption of excess energy by water forces the particles to transform into gas thus the ability to escape into the atmosphere. The water (gaseous form) eventually condenses into clouds.

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