ELEM 339 Quiz

Earth's crust is thought to be divided into seven major sections called

• rock zones

• crustal plates

• core layers

• oceans and continents

Earthquake waves move faster in the _____________ than in the crust.

• core
• ocean
• atmosphere
• upper mantle

In 1912, _____________ proposed the theory that continents were formely one, large land mass called Pangaea.

• Marie Curie
• Galileo Galilei
• Alfred Wegener
• Isaac Newton

The atmosphere consists primarily of which three gases?

• nitrogen

• carbon dioxide

• hydrogen

• oxygen

During which era did the first land plants, reptiles, fish, spiders, and insects appear?

• Paleozoic Era
• Cenozoic Era
• Mesozoic Era
• Jurassic Era

The universe consists of all the ________, ________, and ________ that exists.

• time, matter, cells

• light, water, time

• thought, process, energy

• matter, energy, space

________ contain hundreds of millions of stars, clouds of dust, and gas.

• The solar system

• Constellations

• Galaxies

• The asteroid belt

The ________ is made up of the sun, planets, and bodies of matter.

• galaxy
• constellation
• asteroid belt
• solar system

The term planet is defined as a celestial body that ________, ________, and ________.

• orbits the Moon

• orbits the Sun

• has cleared its orbit of debris

• has enough self-gravity to assume a nearly round shape

The mission of the Mars rover Curiosity is to look for evidence of ________ on the surface of Mars.

• aliens
• microbial life

• water
• volcanoes