Unit 9 Review

All of the following are ways that the atmosphere makes the existence of life on Earth possible EXCEPT —

• maintains a constant temperature

• shields Earth from small collisions

• offers protection from radiation

• allows for gas exchange between plants and animals

Scientists have determined that there is a particular distance from the Sun that is most likely to allow life to inhabit a planet. This area is called the inhabitable zone and is shaded in the diagram below. Also, the planet needs liquid water and oxygen present.

According to the information above, why would Planet E NOT be a good place to look for life?

• Too hot

• No oxygen

• Too cold

• No water

Tags

NGSS.MS-LS1-5

The table below shows characteristics of planets in our solar system.

Which planet could most likely support human life?

• Planet A

• Planet B

• Planet C

• Planet D

Tags

NGSS.MS-ESS2-4

Which of the following characteristics of the Sun helps life to exist on Earth?

• Characteristics 1, 2, and 3

• Characteristics 2 and 3

• Characteristics 2, 3, 4, and 5

• Characteristics 3, 5, and 6

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Which of the following characteristics of the Earth are essential to the existence of life?

• Characteristics 2 and 4

• Characteristics 1, 2, and 4

• Characteristics 2, 4, and 5

• Characteristics 1 and 3

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-5

The two most abundant gases in Earth’s atmosphere are nitrogen and oxygen.

Which planet would most likely be able to support life from Earth?

• Planet A

• Planet B

• Planet C

• Planet D

Which characteristics from the list below cause terrestrial planets to be more likely to have life than Jovian planets?

• 2, 3, and 5

• 2 and 3

• 1, 2, and 3

• 2, 3, and 4

Properties of objects in our solar system are listed below.

Which planet or moon in our solar system is most likely to have characteristics needed for life to exist?

• Earth's moon

• Venus

• Mars

• Europa

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

Which planet would be the most likely place to observe for life?

• A

• B

• C

• D

The data below shows characteristics of the four known terrestrial planets in our solar system.

Based on the data and your understanding of the characteristics that support life, which planet is most likely Earth?

• Planet W

• Planet X

• Planet Y

• Planet Z