Describe earth's energy budget. how is energy absorbed and reflected from the surface.

Earth's energy budget:

The earth’s energy budget is nothing but the balance maintained between the energy received from the sun, the energy that is being radiated back into the outer space after being distributed among  five components. About 50% of the energy received are being absorbed by the surface of earth that can be lad or oceans. Then 30% will be directly reflected back or returned back to the space by the clouds as the earth’s surface has different gases and particles present in it. And the rest 20% is being absorbed by the atmosphere or the clouds. Energy released from the Sun is given out as ultraviolet energy and  shortwave light .

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.