Explanation

The lungs are located on either side of the breastbone in the chest cavity 

Explanation

Demography is the statistical study of human populations.

Demography examines the size, structure, and movements of populations over space and time. 

Explanation

The minimum velocity required to place or maintain a satellite in a given orbit is called orbital velocity.

Explanation

The ultraviolent rays are filtered through Ozone Layer.

The ozone layer, often known as the ozone shield is a part of the Stratosphere.

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Explanation

Summer Solstice happens once every year. 

Summer Solstice is on 21 June, also known as the longest day of the year.

22 December night is the longest night of the year.

Explanation

• Easily digested and absorbed
• Quickly converted into glucose
• Readily available for use by the body's cells

Explanation

• Fission is the splitting of a nucleus that releases free neutrons and lighter nuclei.
• The fission of heavy elements is highly exothermic which releases about 200 million eV compared to burning coal which only gives a few eV.

Explanation

The telescope is undoubtedly the most important investigative tool in astronomy.

A celestial body that revolves around a planet is known as a natural satellite.

Explanation

Answer:

It looks dark to astronauts. On the earth, the blue sky can be seen due to the existence of the atmosphere. The atmosphere blocks the rays of the sun and you can see the color of the sky. In the universe, because there is no atmosphere, the rays reach the astronomer's eyes without refraction and appear dark.

Explanation

Agranulocytes are one type of white blood cell that contain no distinct granules in the cytoplasm.

Agranulocytes originate from Lymphoid tissue, and their nucleus is not lobed.