Which words describe the composition of the inner planets?
Answers
Answer:
Inner Planets
The inner four planets are called terrestrial planets. That means that they are like the earth in some ways. The terrestrial planets Mercury, Venus, Earth, Mars, and the earth's moon have similar compositions and densities. These planets are close to the sun, rocky, and dense. They are fairly small. They have few moons and no rings. Their evironments are oxidized; that is, oxygen dominates the chemistry. Meteors, tectonic activity, and erosion have modified the surfaces of the terrestrial planets.
The atmospheres of the terrestrial planets have changed as a result of sunlight (which produces chemical reactions, such as those that break apart water molecules), escape of light gases, volcanic activity, and in the case of our planet, biological activity.
The main stages of evolution of the terrestrial planets are:
formation
impacts (during the period of early bombardment)
flooding of basins with lava
lessening of impacts, and, in some cases, the formation of an atmosphere
plate tectonics
lower activity
cooling, inactivity