and craters b.that the Sun has imperfections known as sunspots c.that four small points of light orbit the planet Jupiter d.the invention of the telescope e.that Venus shows a complete cycle of phases Which one of these statements describes why the planet Venus is much warmer than Earth? a.Venus has a denser and deeper atmosphere. b.It is closer to the Sun than Earth. c.It experienced a 'runaway greenhouse effect' long ago. d.It produces more carbon dioxide than is absorbed by the surface. e.all of the mentioned statements

and craters b.that the Sun has imperfections known as sunspots c.that four small points of light orbit the planet Jupiter d.the invention of the telescope e.that Venus shows a complete cycle of phases Which one of these statements describes why the planet Venus is much warmer than Earth? a.Venus has a denser and deeper atmosphere. b.It is closer to the Sun than Earth. c.It experienced a 'runaway greenhouse effect' long ago. d.It produces more carbon dioxide than is absorbed by the surface. e.all of the mentioned statements

Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter7: The Sun

Section: Chapter Questions

Problem 17RQ

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Question

100%

An astronomical unit

a.is the average distance from the Earth to the Sun.

b.is about 150 million kilometres.

c.is measured using radar signals bouncing off Venus.

d.has units of distance.

e.all of the mentioned choices.

Galileo made many discoveries. Which one of these is not attributed to him?

a.that the Moon has mountains, valleys and craters

b.that the Sun has imperfections known as sunspots

c.that four small points of light orbit the planet Jupiter

d.the invention of the telescope

e.that Venus shows a complete cycle of phases

Which one of these statements describes why the planet Venus is much warmer than Earth?

a.Venus has a denser and deeper atmosphere.

b.It is closer to the Sun than Earth.

c.It experienced a 'runaway greenhouse effect' long ago.

d.It produces more carbon dioxide than is absorbed by the surface.

e.all of the mentioned statements

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