Characteristics of Earth that Support Life Flashcards
How does temperature affect the ability of Earth to support life?
a. temperature intensifies gravity
b. temperature produces nutrients
c. temperature protects Earth from radiation
d. temperature affects biological and chemical processes
d. temperature affects biological and chemical processes
Enumerate the four characteristics necessary to support Life.
- Temperature
- Energy
- Nutrients
- Atmosphere
Why is the ozone layer important to Earth?
a. It regulates the weather on Earth.
b. It produces enough amount of rain.
c. It protects Earth from meteors and asteroids impact.
d. It filters harmful UV radiation that reaches the Earth.
d. It filters harmful UV radiation that reaches the Earth.
Plants, animals, and microbes survive and thrive on Earth million years ago because Earth provides essential factors needed for life to exist. Which of the following factors is essential to support life on the planet?
a. Liquid water
b. Nutrients
c. Temperature
d. All of the above
d. All of the above
Which of the following is not a function of Earth’s atmosphere?
a. It provides energy.
b. It provides significant insulation.
c. It protects from harmful radiation.
d. It gives protection against small to medium size meteorites.
a. It provides energy.
What is a greenhouse gas?
a. It is a gas that traps heat.
b. It is a gas that releases heat from Earth.
c. It is a gas that shields Earth from radiation.
d. It is a gas that provides protection from space.
It is a gas that traps heat.
Which of the following factors affects a planet’s ability to hold atmosphere?
a. orbital size
b. presence of volcano
c. distance from the sun
d. presence of liquid water
distance from the sun
What is the most important factor that determines Earth’s temperature?
a. size of the orbit
b. distance from the sun
c. gas in the atmosphere
d. amount of water on the planet
c. gas in the atmosphere
How do volcanoes support life on Earth?
a. It helps in nutrient cycling.
b. It produces gas that cools the Earth.
c. It provides heat through magma release.
d. It changes the topography of the Earth’s crust.
a. It helps in nutrient cycling.
An astronomer observed an Earth-sized like planet in a distant galaxy. Based on the data, the planet is at the same distance from its star, like Earth to its star the sun. It is also covered with a thick atmosphere which is composed of carbon dioxide and shows no volcanic activity. What can you infer from these data?
a. The Earth-like planet is hot and nutrient cycling occurs.
b. The Earth-like planet is cold and nutrient cycling occurs.
c. The Earth-like planet is hot and no nutrient cycling occurs.
d. The Earth-like planet is cold and no nutrient cycling occurs.
c. The Earth-like planet is hot and no nutrient cycling occurs.
