Mid Term Exam Review

Front

What is the most abundant gas in the Earth's atmosphere?

Back

Nitrogen is the most abundant gas in the Earth's atmosphere, making up about 78%.

Front

What is the distance between the Earth and the Sun crucial for?

Back

The distance between the Earth and the Sun is crucial for supporting life on Earth, as it allows for a suitable temperature range.

Front

What is the Oort Cloud?

Back

The Oort Cloud is a spherical region surrounding our solar system that contains long-period comets, located thousands of astronomical units away from the Sun.

Front

What force keeps all the planets in orbit around the Sun?

Back

Gravity is the force that keeps all the planets in orbit around the Sun.

Front

What percentage of Earth's surface is covered by water?

Back

About 71% of Earth's surface is covered by water.

Front

What does a greater gravitational pull indicate?

Back

A greater gravitational pull indicates that an object has more mass compared to another object.

Front

What is the role of the Kuiper Belt?

Back

The Kuiper Belt is a region of the solar system beyond Neptune that contains many small icy bodies and is the source of short-period comets.

Front

What is the significance of Earth's revolution time?

Back

The length of time of Earth's revolution around the Sun affects the seasons and climate, but it is not the most crucial characteristic for supporting life.

Front

What is the difference between the Oort Cloud and the Kuiper Belt?

Back

The Oort Cloud is a distant spherical shell surrounding the solar system, while the Kuiper Belt is a flat region of icy bodies beyond Neptune.

Front

What is the primary component of Earth's atmosphere?

Back

The primary component of Earth's atmosphere is nitrogen, followed by oxygen.