World Earth Day

Front

The Earth is the ... planet from the Sun in the Solar System.

Back

3rd

Front

Do terrestrial planets emit light of their own?

Back

No

Front

Is it true the Earth's axis of rotation is perpendicular to the orbital plane?

Back

No

Front

Is the Earth's axis of rotation perpendicular to the orbital plane?

Back

No

Front

When did the Earth form?

Back

4,5 billion years ago

Front

What is the primary cause of tide on Earth?

Back

the Moon's gravity

Front

Is it true that the thickness of the oceanic and the continental crust is different?

Back

Yes

Front

What is the average thickness of the Earth's crust?

Back

30 km

Front

The Earth has the ... density among the terrestrial planets in the Solar System.

Back

largest

Front

Is it true that 70 percent of the Earth's surface is land?

Back

No