When silicon atoms bond, then silicates form which are minerals in which such elements as potassium, calcium, magnesium and aluminum combine with the silicon atoms to form minerals like feldspars of different types or if it is just silicon and oxygen that bond then it forms quartz.
C is the answer both a and b
Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill.
Answer:
They tend to have little rain, high daytime temperatures, and sparse plants adapted to the harsh conditions. Climate is the key abiotic factor that determines where terrestrial (land) biomes are found. ... Certain types of biomes tend to fall in rough bands along Earth's north-south axis.
