Exam Review 3

Front

What is the reason for the reversal of winter and summer months by the year 14000?

Back

The axis of Earth will point toward the star Vega due to the slow wobble of the axis.

Front

What is the estimated number of stars in the Milky Way galaxy?

Back

Approximately 200 billion.

Front

On what characteristic is the classification of galaxies based?

Back

The shape of the galaxy.

Front

How do oceans and land differ in absorbing and storing the Sun's energy?

Back

More energy is absorbed and stored by oceans than by land.

Front

What primarily explains the variance in the length of time between night and day on Earth?

Back

Earth’s angle of tilt.

Front

What is the effect of Earth's axial tilt on seasons?

Back

It causes the seasons to change as different parts of Earth receive varying amounts of sunlight throughout the year.

Front

What is the significance of the star Vega in relation to Earth's axis?

Back

By the year 14000, Earth's axis will point toward Vega, affecting seasonal patterns.

Front

What is the main factor that affects the temperature of Earth's surface?

Back

The distribution of sunlight due to the tilt of the Earth's axis and the presence of oceans.

Front

How do oceans contribute to climate regulation?

Back

Oceans absorb and store more energy than land, helping to moderate temperatures.

Front

What are the main types of galaxy shapes?

Back

Elliptical, spiral, and irregular.