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Answer 4} ATMOSPHERE AS A BLANKET OF AIR - DEFINITION
The blanket of air surrounding the earth is known as the atmosphere. It exists in several layers, around the earth. These layers become thinner at high altitudes. Therefore, one finds it difficult to breathe as one goes up. This is because less air is pressing down from above. Half of the total mass of air is found below 5 km, touching the surface of the earth. It is held close to the earth by gravity. The atmosphere protects the earth from harmful ultraviolet and infrared rays of the sun. It has oxygen and nitrogen, the life sustaining gases. It helps in retaining the necessary warmth on the earth and helps in the circulation of water vapour - the source of rainfall.
Answer 5} Since the Earth is spherical in shape, all parts of the Earth do not receive equal sunlight. As the lower latitudes or the equatorial regions receive maximum sunlight, temperatures are high. The higher latitudes receive the slanting rays of the Sun and hence temperatures are low.
Answer 6}The 3 main factors that affect atmospheric pressure are:
Temperature
Altitude or Elevation.
Moisture ow water vapour
Explanation:
Answer:
Answer 4} ATMOSPHERE AS A BLANKET OF AIR - DEFINITION
The blanket of air surrounding the earth is known as the atmosphere. It exists in several layers, around the earth. These layers become thinner at high altitudes. Therefore, one finds it difficult to breathe as one goes up. This is because less air is pressing down from above. Half of the total mass of air is found below 5 km, touching the surface of the earth. It is held close to the earth by gravity. The atmosphere protects the earth from harmful ultraviolet and infrared rays of the sun. It has oxygen and nitrogen, the life sustaining gases. It helps in retaining the necessary warmth on the earth and helps in the circulation of water vapour - the source of rainfall.
Answer 5} Since the Earth is spherical in shape, all parts of the Earth do not receive equal sunlight. As the lower latitudes or the equatorial regions receive maximum sunlight, temperatures are high. The higher latitudes receive the slanting rays of the Sun and hence temperatures are low.
Answer 6}The 3 main factors that affect atmospheric pressure are:
Temperature
Altitude or Elevation.
Moisture ow water vapour
Explanation: