ES SOL Questions for Review - Flashcard

Front

What shape do scientists use to describe the Milky Way galaxy?

Back

Spiral

Front

What event in Earth’s past most likely occurred just before animal life emerged?

Back

Photosynthetic organisms developed.

Front

What is the Mid Atlantic Ridge an example of?

Back

A divergent boundary (seafloor spreading).

Front

What is an astronomical unit (AU)?

Back

The mean distance between the center of the Earth and the center of the sun.

Front

Which planet is less than 1 AU from the sun?

Back

Mercury.

Front

What would be most affected if Earth was not tilted at 23.5 degrees?

Back

Seasonal changes.

Front

What is the distance of the Sun from the Earth in AU?

Back

1 AU.

Front

What is the significance of photosynthetic organisms in Earth's history?

Back

They developed before animal life emerged, contributing to the atmosphere.

Front

What happens at a divergent boundary?

Back

Tectonic plates move apart, leading to seafloor spreading.

Front

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

Back

It causes seasonal changes due to varying sunlight distribution.