Correct the false statements –

a) If a place is closer to sea, irrespective of its distance from equator, it will always be cooler.

b) As you go up higher from the earth, it becomes warmer because sun is closer to you.

c) Sun heats the air first and then the earth.

d) Global warming is related to oxygen.

a) If a place is closer to the sea, irrespective of its distance from equator, it will always experience a moderate climate.

It is difficult for the Sun to heat up or cool down the surface of the sea. Since the sea doesn’t get too hot or cold, the air above the sea also doesn’t get too hot or cold. Therefore, places near the sea usually have temperatures that remain fairly constant throughout the year, known to have a moderate climate. For example - Panaji

b) As you go up higher from the earth, it becomes cooler because sun’s rays first heat the Earth’s surface.

The air that surrounds us is not directly heated by the rays of the sun. In fact, it allows the rays to pass through without being heated by them. Therefore, the surface of the Earth gets heated first and that is why it is warmer near the surface as compared to places of high altitudes.

c) Sun heats the earth’s surface first and then eventually heats up the atmosphere.

The air that surrounds us is not directly heated by the rays of the sun. In fact, it allows the rays to pass through without being heated by them. Therefore, the surface of the Earth gets heated first and that is why it is warmer near the surface as compared to places of high altitudes.

d) Global warming is related to increase in the proportion of carbon dioxide in the Earth’s atmosphere.

The Earth radiates the heat it receives from the Sun. However, gases like carbon dioxide prevent radiation of heat from the Earth are increased in the air due to the use of petrol and diesel and cutting of trees etc. This increase in carbon dioxide, results in increasing global temperatures, leading to global warming.