Unit 4 Test: Earth's Early History 2024

Front

What is the age comparison between the Earth and the Solar System?

Back

The Earth and the Solar System formed at the same time.

Front

Which planet has the least amount of visible craters?

Back

Earth.

Front

What causes the circular shape of craters on planets?

Back

Material flying out in all directions as a result of the explosion upon meteorite impact.

Front

What percentage of Earth's atmosphere is nitrogen?

Back

78%.

Front

Why are there fewer impact craters on Earth compared to the Moon, Mercury, and Mars?

Back

Plate Tectonics have recycled much of Earth's crust but plate tectonics is not currently occurring on the other solar bodies.

Front

Define 'Craters' in the context of planetary surfaces.

Back

Craters are depressions on a planetary surface caused by the impact of meteoroids.

Front

What role does weathering play in the visibility of craters on Earth?

Back

Weathering and erosion caused by wind and water can obscure or erase craters.

Front

Explain the concept of Plate Tectonics.

Back

Plate Tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle.

Front

What is the primary gas in Earth's atmosphere?

Back

Nitrogen, making up about 78% of the atmosphere.

Front

How do meteorite impacts affect planetary surfaces?

Back

Meteorite impacts create craters and can alter the surface landscape significantly.