Geography and Earth Life

What is the only known planet that supports life?

• Mars

• Jupiter

• Earth

• Venus

Approximately how many years ago did the Earth form from leftover particles from the creation of the Sun?

• 1.5 billion

• 2.4 billion

• 3.8 billion

• 4.5 billion

What is the outermost layer of the Earth, composed of rock?

• Solid inner core

• Liquid outer core

• Silicate mantle

• Rocky crust

What position does the Earth occupy in relation to the Sun?

• First planet

• Second planet

• Third planet

• Fourth planet

What characteristic of the Earth prevents its surface from being exposed to extreme heat and radiation?

• Its large size

• Its appropriate distance from the Sun

• Its rapid rotation

• Its magnetic field

What unique elements does the position of Earth in the solar system allow?

• Liquid surface water and life

• Extremely cold temperatures

• Large dust storms

• Absence of atmosphere

What age does much of the Earth's water have compared to its rocks?

• It is much younger

• It is much older

• They are approximately the same age

• It formed after life

What does the distance from the Earth to the Sun allow regarding water?

• That water only exists as ice

• That water completely evaporates

• That water exists in all its forms

• That water freezes permanently