GENERAL GEOLOGY

Detailed explanation-1: -Students figure out: Earth, Mars, and other rocky planets can be thought of as systems. These systems are made up of interacting spheres that can include the geosphere, atmosphere, hydrosphere, and biosphere.

Detailed explanation-2: -Key concept 2: When landforms on differennt rocky planets look similar it is evidence that they may have been formed by the same geologic proccess.

Detailed explanation-3: -Mercury is the only planet without any kind of atmosphere. It does, however, have an exosphere, which is made up of gases that are absorbed from the solar wind and emitted from the planet’s surface.

Detailed explanation-4: -Venus is a rocky planet, much like the Earth. Given its similar size, mass, and density to our planet, scientists think that its interior is much like Earth’s own. In addition to a crust significantly older than Earth’s constantly changing surface, Venus likely also sports a mantle and a core.

Detailed explanation-5: -They are then presented with new information: conglomerate rock was found near the base of the channel on Mars. This evidence strongly supports the claim that the channel was formed by flowing water.