Default Title

Question (21)

QN008754

The unequal distribution of solar radiation across the globe primarily drives:

(A) Photosynthesis only
(B) Soil formation only
(C) Global winds and ocean currents
(D) Earthquakes and volcanoes

Correct Answer: C

Explanation:

Uneven heating creates pressure differences that drive winds and ocean currents.

Link:

Report Error

Question (22)

QN008755

A snow-covered region changes into dark bare ground after melting. What is the most likely effect?

(A) Albedo increases
(B) Less solar energy absorbed
(C) More solar energy absorbed
(D) No change in temperature

Correct Answer: C

Explanation:

Dark ground has lower albedo and absorbs more heat.

Link:

Report Error

Question (23)

QN008756

Which region receives the most concentrated solar radiation?

(A) North Pole
(B) South Pole
(C) Equator
(D) Arctic Circle

Correct Answer: C

Explanation:

The Sun’s rays fall more directly near the equator.

Link:

Report Error

Question (24)

QN008757

If a 10 m² area receives 1 kW m⁻² insolation for 15 minutes, the energy received is:

(A) 9 × 10⁶ J
(B) 1 × 10⁶ J
(C) 5 × 10⁶ J
(D) 3.6 × 10⁷ J

Correct Answer: A

Explanation:

E = 1000 × 10 × 900 = 9 × 10⁶ J.

Link:

Report Error

Question (25)

QN008758

Which statement best explains why ocean water generally appears warmer than snow-covered land under sunlight?

(A) Ocean water has lower albedo
(B) Ocean water reflects more sunlight
(C) Snow absorbs more heat
(D) Snow generates its own heat

Correct Answer: A

Explanation:

Ocean water absorbs more solar radiation due to lower albedo.

Link:

Report Error

Question (26)

QN008759

If a surface reflects 30% of incoming radiation, what fraction is absorbed?

(A) 0.30
(B) 0.40
(C) 0.70
(D) 1.30

Correct Answer: C

Explanation:

Absorbed fraction = 1 − 0.30 = 0.70.

Link:

Report Error

Question (27)

QN008760

The urban heat island effect is largely related to:

(A) High-albedo city materials
(B) Extensive snow cover
(C) Heat absorption and re-radiation by concrete and asphalt
(D) Increased ocean currents

Correct Answer: C

Explanation:

Concrete and asphalt absorb and retain large amounts of heat.

Link:

Report Error

Question (28)

QN008761

Which situation would most likely reduce local surface temperature?

(A) Replacing grassland with black asphalt
(B) Covering an area with snow
(C) Removing reflective surfaces
(D) Increasing dark-coloured roofing

Correct Answer: B

Explanation:

Snow has a very high albedo and reflects most sunlight.

Link:

Report Error

Question (29)

QN008762

If the solar constant is 1.4 kW m⁻², how much energy reaches a 2 m² area in 10 seconds at the top of the atmosphere?

(A) 28,000 J
(B) 14,000 J
(C) 2,800 J
(D) 280,000 J

Correct Answer: A

Explanation:

E = 1400 × 2 × 10 = 28,000 J.

Link:

Report Error

Question (30)

QN008763

The primary reason sunlight heats different parts of Earth differently is:

(A) Earth’s spherical shape
(B) Constant cloud cover
(C) Ocean salinity
(D) Atmospheric pressure alone

Correct Answer: A

Explanation:

Different angles of sunlight occur because Earth is spherical.

Link:

Report Error

Question (21)

The unequal distribution of solar radiation across the globe primarily drives:

Explanation:

Link:

Question (22)

A snow-covered region changes into dark bare ground after melting. What is the most likely effect?

Explanation:

Link:

Question (23)

Which region receives the most concentrated solar radiation?

Explanation:

Link:

Question (24)

If a 10 m² area receives 1 kW m⁻² insolation for 15 minutes, the energy received is:

Explanation:

Link:

Question (25)

Which statement best explains why ocean water generally appears warmer than snow-covered land under sunlight?

Explanation:

Link:

Question (26)

If a surface reflects 30% of incoming radiation, what fraction is absorbed?

Explanation:

Link:

Question (27)

The urban heat island effect is largely related to:

Explanation:

Link:

Question (28)

Which situation would most likely reduce local surface temperature?

Explanation:

Link:

Question (29)

If the solar constant is 1.4 kW m⁻², how much energy reaches a 2 m² area in 10 seconds at the top of the atmosphere?

Explanation:

Link:

Question (30)

The primary reason sunlight heats different parts of Earth differently is:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY