JBTC3.4

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Notes 3.4
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Introduction

 * other planets are very similar to Earth
 * they both have a moon and a rocky crust

Earth's Moon

 * if you look at the moon's surface, you'll discover the black part is very very smooth
 * it is smooth because lava once flowed there

Volcanoes on Venus

 * Venus have thousands of volcanos
 * the largest of them all is Theia Mons
 * which measured about 800 km across and 4 km high

Volcanoes on Mars

 * there are fewer volcanoes at Mars
 * on Mars, there are a lot of shield volcanoes
 * the largest volcano is Olympus Mons
 * it is as big as Ohio

Volcanoes on Distant Moons

 * Io, the moon of Triton and Jupiter has some volcanoes too
 * the volcanoes shoots out frozen nitrogen