Question

Enviromental Physics

To which region of the electromagnetic spectrum does the peak emission of an electric stove (T=660 K) belong to?

Question 12 options:

A) Blue end of the visible spectrum.

B) Red end of the visible spectrum C) Microwave region

D) Infrared region

Question 13 (1 point)

To which region of the electromagnetic spectrum does the peak emission of Sun's surface (T= 5700 K) belong to?

Question 13 options:

A) Yellow-green part of the visible region

B) Ultraviolet-B region.

C) Red end of the visible region

D) Ultraviolet-A region

E) Infrared region

Question 14 (1 point)

To which region of the electromagnetic spectrum does the peak emission of Earth's surface (300 K) belong to?

Question 14 options:

A) Visible region.

B) Ultraviolet region.

C) Radiowave region

D) Microwave region.

E) Infrared region

Which of the following statements regarding Earth's atmosphere is incorrect?

Question 18 options:

A) Carbon-dioxide was a major atmospheric component when the Earth was young.

B) Earth's atmosphere cannot have Oxygen if life were absent.

C) Oxygen was absent in the atmosphere when the Earth was young.

D) Carbon-dioxide was absent in the atmosphere when the Earth was young.

Question 19 (1 point)

Which of the following statements regarding the Earth's energy balance and greenhouse effect is incorrect?

Question 19 options:

A) When Earth receives less energy than it radiates its temperature decreases with time.

B) When Earth receives more energy than it radiates its temperature increase with time.

C) When greenhouse gases are present in the atmosphere, Earth's energy balance is disturbed permanently and its temperature will keep on increasing with time.

D) Methane is a more powerful greenhouse gas than Carbon-dioxide.

Question 20 (1 point) Question 20 Unsaved

Which of the following statements regarding Earth's energy balance during ice age is incorrect?

Question 20 options:

A) During the ice age Earth receives more radiation but radiates less.

B) During an ice age Earth's surface absorbs less of the incoming solar radiation.

C) During the ice age Earth's surface absorbs less of incoming solar radiation and also radiates less of infrared rays.

D) During the ice age when the temperature stabilizes at a lower value the incoming radiation is in balance with the outgoing radiation

Question 21 (1 point)

Carbon-dioxide is the most toxic pollutant in the Earth's atmosphere

Question 21 options:

A) True

B) False

Answer 1