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Why is it reasonable to conclude that the internal structure and evolution of Venus are basically Earthlike?

They have similar masses and sizes.

In the time between two closest approaches to Earth, Venus rotates almost exactly five times relative to the sun. The consequence of this is that:

Venus always presents the same face to Earth at inferior conjunction.

Through radar observations it was found that Venus'

rotation on its axis is retrograde.

Why does Venus appear so bright to the eye?

All of these are correct.

Because of its slow rotation period, Venus:

presents the same side to Earth at each closest approach.

The synodic period of Venus is the time it takes for:

Venus to complete a full cycle of phases.

Which statement is true of Venus' surface?

There are two continent sized uplands.

A surprise from the Pioneer Venus photos was that:

the clouds rotate around the planet in only four days, very unlike the slow surface rotation.

Venus has a feature named Aphrodite Terra. What is this feature?

a continental-sized plateau

Maxwell Mons on Venus is a huge:

shield volcano.

What is thought to have caused the craters on Venus?

Most are volcanic in origin; some are due to meteoritic impacts.

Magellan did not find which of these on Venus?

actual volcanic eruptions in progress

The largest volcanic structures on Venus are called:


The only spacecraft to successfully land on Venus were:

Russian Veneras.

A characteristic of sheild volcanoes is the formation of a crater at the summit which occurs when:

the lava withdraws and the surface collapses.

What is the result of the Greenhouse effect on the surface environment of Venus?

It has raised the surface temperature by hundreds of degrees Celsius

What is the main constituent of the atmosphere of Venus?

carbon dioxide

If Venus once had an ocean, where did it go?

The water broke into hydrogen, which escaped to space, and oxygen, which became trapped in the planet's surface rocks.

The absence of a magnetic field on Venus probably stems from its:

slow rotation.

Which of the following contributes to Venus being so hot?

All of these are factors.

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