Question

1. what happens to light intensity when sunlight hits earth at a smaller angle?

a. it becomes more intense and stronger
b. it stays exactly the same everywhere
c. it reflects more energy back to space
d. it spreads out and becomes weaker

1. which location on earth experiences almost 12 hours of daylight all year long?

a. the north pole
b. the tropic of cancer
c. the equator
d. the arctic circle

1. which planet has no seasons because it has no tilt on its axis?

a. mercury
b. earth
c. mars
d. venus

Explanation:

• Question 3: When sunlight hits Earth at a smaller angle, it spreads out over a larger area. This spreading causes the light intensity to decrease (become weaker). For example, near the poles, sunlight hits at a small angle and the area is cooler compared to the equator where sunlight is more direct.
• Question 4: The Equator has a relatively consistent amount of daylight throughout the year. Due to Earth's tilt and orbit, the length of day and night at the Equator is approximately 12 hours all year. In contrast, regions like the North Pole have periods of continuous daylight (mid - summer) and continuous darkness (mid - winter).
• Question 5: Mercury has a very small axial tilt (almost negligible). Seasons on planets are mainly caused by the axial tilt. Earth has a significant tilt (\(23.5^{\circ}\)) which causes seasons. Mars also has a tilt (\(25.19^{\circ}\)) similar to Earth, and Venus has a tilt of about \(177.3^{\circ}\) (retrograde rotation but still some seasonal - like effects due to its orbit and atmosphere). Mercury's lack of significant tilt means it has no real seasons.

Answer:

• 3. D. It spreads out and becomes weaker
• 4. C. The Equator
• 5. A. Mercury