Earth's Axial Tilt and Its Consequences

What is one of the main reasons Earth experiences different seasons?

• The speed of Earth's rotation varies.

• The moon's gravitational pull affects Earth's climate.

• Earth's axial tilt points different parts of the planet toward the sun at different times.

• The distance from the sun changes.

If Earth's axis were tilted to 90 degrees, what would be a likely effect on the Northern Hemisphere?

• The Northern Hemisphere would experience continuous darkness for months.

• The Northern Hemisphere would have no change in daylight hours.

• The Northern Hemisphere would experience continuous daylight for months.

• The Northern Hemisphere would have shorter days and longer nights.

How would continuous daylight affect human health?

• It would increase melatonin production.

• It could lead to sleep deprivation and depression.

• It would have no effect on human health.

• It would improve sleep quality.

What would happen to sea levels if Greenland's ice cap melted?

• Sea levels would decrease.

• Sea levels would rise by 7 meters.

• Sea levels would remain the same.

• Sea levels would rise by 1 meter.

What is a potential consequence of warmer seas due to a more extreme axial tilt?

• Decreased hurricane activity.

• Stronger and more frequent hurricanes.

• No change in weather patterns.

• Colder sea temperatures.