UNIT: EARTH AND SPACE SCIENCE- 2 answers

Front

What explains the presence of fossils of ocean and land animals found inland on the continent of North America?

Back

Ocean waters covered the land millions of years ago.

Front

What type of boundary exists between the Juan de Fuca Plate and the North American Plate?

Back

Convergent boundary, where the plates are moving toward each other.

Front

What causes the changes in water levels at the beach during the day?

Back

The Moon’s gravitational pull.

Front

According to the law of superposition, what can be said about Intrusion A and layer E?

Back

Intrusion A is younger than layer E.

Front

Why does Mercury have many more craters than Earth?

Back

Mercury has a thinner atmosphere than Earth.

Front

What is a convergent boundary?

Back

A tectonic plate boundary where plates move toward each other.

Front

What is the law of superposition?

Back

In undisturbed rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What role does the Moon play in ocean tides?

Back

The Moon's gravitational pull causes the rise and fall of ocean water levels.

Front

What is the significance of fossils in understanding Earth's history?

Back

Fossils provide evidence of past life and environmental conditions.

Front

How do tectonic plates affect the Earth's surface?

Back

Tectonic plates can cause earthquakes, volcanic activity, and the formation of mountains.