Ancient Earth MOON

Front

How long does it take the Moon to rotate on its axis?

Back

27.3 Earth days.

Front

Which of the following was NOT formed during the Hadean Era?

Back

The oceans of the earth.

Front

What is a nebula?

Back

A cloud of dust and gas.

Front

What period of time was characterized by harsh conditions with no life forms?

Back

Hadean.

Front

How old is the Earth?

Back

4.54 billion years old.

Front

What is the Hadean Era?

Back

The earliest geological eon of Earth's history, characterized by extreme conditions and the formation of the planet's initial crust.

Front

What are the main components of a nebula?

Back

Dust and gas.

Front

What significant event occurred during the Hadean Era?

Back

Formation of the Earth's crust and core.

Front

What is the significance of the Moon's synchronous rotation?

Back

The Moon rotates on its axis in the same time it takes to orbit Earth, resulting in the same side always facing Earth.

Front

What is the difference between the Hadean and Archean Eons?

Back

The Hadean is the time before life existed, while the Archean is when the first simple life forms appeared.