SOLAR SYSTEM

UNIVERSE

LIFE IN THE SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a reason that life exists on Earth?
A
distance from the Sun
B
presence of an atmosphere and magnetic field
C
liquid water
D
all of these are reasons life exists on Earth
Explanation: 

Detailed explanation-1: -The temperature and atmosphere of the earth make life comfortable for the organism. Earth is at an adequate distance from the sun which gives us heat that is neither too hot nor too cold. Earth has enough amount of water, food, and air for the survival of living organisms.

Detailed explanation-2: -It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.

Detailed explanation-3: -The biosphere is the region of the earth that encompasses all living organisms: plants, animals and bacteria.

Detailed explanation-4: -Life exists on Earth because it has air and water which are needed by human beings to survive. The Earth is surrounded by a layer of air called atmosphere which protects us from harmful rays of the Sun. The various gases present in the air are Oxygen, Nitrogen and Carbon dioxide. All living things breathe in Oxygen.

Detailed explanation-5: -Answer: The earth has conditions that support life. It is neither too hot nor too cold. It has both water and air, which are both indispensable for life. Presence of oxygen in the air in an appropriate proportion supports life.

Detailed explanation-6: -This is so because the atmosphere of the Earth allows ideal temperature maintenance, and has all the important gases required to support vegetation and the livelihood of various life forms.

Detailed explanation-7: -Among the stunning variety of worlds in our solar system, only Earth is known to host life.

There is 1 question to complete.