Earth Science sem 2 wk 6

A light-year equals

• 150 million Ian.

• 9.4607 x 10¹² Ian

• 14 billion

The event which began the universe was the

• Milky Way

• black hole

• big bang

The telescope that solved the problem of color separation was the

• refracting telescope

• Hubble space telescope

• reflecting telescope

Which telescope detects invisible electromagnetic radiation

• radio telescope

• reflecting telescope

• refracting telescope

The two inner planets most alike in size, mass, and density are

• Mercury and Venus.

• Earth and Mars.

• Venus and Earth.

Kepler's third law describes the relationship between the average distance of a planet from the sun and the planet's

• orbital period.

• average temperature.

• gravitational pull.

Which planet has volcanic regions that may still be active

• Mars

• Uranus

• Mercury

Which of the following planets has the most complex ring system

• Neptune

• Jupiter

• Saturn

What happens when the shadow of one celestial body falls on another celestial body?

• a penumbra

• an eclipse

• an umbra

Notable characteristics of 10 and Europa are, respectively,

• ice sheets and tides.

• craters and a magnetic field.

• volcanoes and an ice crust.