Characteristics of Earth to Support Life

Escape Velocity

It refers to the minimum speed an object needs to get away from a planet's pull of gravity?

c. Earth's surface temperature would be too hot to support higher life-forms.

What could possibly happen if Earth is at least 10% closer to the sun? a. There is no effect at all. b. There will be variations in the mean temperature. c. Earth's surface temperature would be too hot to support higher life-forms. d. The oceans would freeze over, and Earth's active water cycle would not exist.

a. Quick evaporation of water.

What could possibly happen if the Earth's temperature is colder than usual? a. Quick evaporation of water. b. Proteins will start to denature. c. Chemical reaction will happen slowly. d. Liquid water can still exist under certain conditions.

c. presence of molten core

Which characteristic of Earth allows the recycling of material and generates a magnetic field that protects us from radiation? a. distance from the sun b. existence of liquid water c. presence of molten core d. occurrence of the atmosphere

a. Quick evaporation of water

Which could possibly happen if Earth is located farther from the sun and not in the Goldilocks Zone? a. Quick evaporation of water b. Proteins will start to denature. c. Chemical reaction will happen slowly. d. Liquid water can still exist under certain conditions.

d. It contains the right amount of mass making its gravity at a right amount

Which does NOT show the uniqueness of the Earth to support life? a. Its molten metallic core. b. Its location around a giant star. c. Its lithosphere is lying over a weak asthenosphere. d. It contains the right amount of mass making its gravity at a right amount

c. exogenic processes

Which is NOT a factor that made Earth habitable? a. atmosphere b. energy c. exogenic processes d. temperature

c. rotation

Which is NOT a factor that makes Earth habitable? a. atmosphere b. energy c. rotation d. temperature

d. production of greenhouse gases in the atmosphere

Which shows the uniqueness of the Earth to support life? a. existence of core b. accumulation of gas from the sun c. presence of the global magnetic field d. production of greenhouse gases in the atmosphere

Surface Pressure

_____________refers to the atmospheric pressure at a location on the surface of the planet and is proportion to the mass of air above the location?