Final Exam Earth Science

How old do Paleontologists believe the Earth is?

• 2019 years old

• 3.6 billion years old

• 4.6 billion years old

• 4.6 million years old

The physical layer of Earth made of solid rock and soil is called the ___________.

• mesosphere

• lithosphere

• asthenosphere

• mantle

Pangaea was an ancient supercontinent made up of...

• America, Greenland, and Europe.
• Antarctica, India, and America.
• all of Earth’s continents.
• South Africa, India, Australia, and South America.

What happens to the density (thickness)/air pressure of the air as you leave Earth?

• air gets thicker

• air gets thinner

• air stays the same

• air disappears

This is the layer where meteors, or shooting stars, burn up.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

Which of these negative effects is  most likely to occur because of global warming?

• rising sea levels
• shorter growing seasons
• increased volcanic eruptions
• falling sea levels

Lands near water will usually be a little bit __________ in the summer and ________ in the winter. 

• cooler, warmer
• warmer, cooler
• warmer, warmer
• cooler, cooler

The layer of the atmosphere where weather occurs is the _.

• thermosphere
• stratosphere
• mesosphere
• troposphere

What causes winds to form on Earth?

• solar energy
• ocean currents
• elevation differences
• uneven heating of the Earth by the sun

What kind of weather is usually associated with a high pressure system?

• Sunny weather
• Precipitation (rain, snow, etc.)