I think it's recreational activities, method of transportation, and choice of occupation. So all of the above. Why? So lets start with recreational activities. Earth's physical form depends of if people want to go fishing, hiking, hiking, etc. Method of transportation. We need to have smooth ground to bike or drive on. A highway isn't going to be in the middle of the mountain. We need to have a good solid surface. Choice of occupation. Earth has a physical feature of like I said, mountains, plains, oceans, etc. We want to live in a place that has good resources, and good weather. All of these things depend on physical features of Earth.
Answer:
The intrusive and extrusive rocks differ in the manner in which they have formed, their density, coloration, grains, etc.
Explanation:
The intrusive and extrusive igneous rocks are the two wide branches of igneous rocks. While they do share multiple similarities, they also have multiple differences, which makes it relatively easy to distinguish them from one another. The differences can be seen in the location of their formation, the size of the grains, their coloration, density, the manner in which they have been formed... Notable differences between these two subgroups of rocks are:
Intrusive: Inside the Earth, plutonic, formed from magma, dark, dense, mafic, cooled off slowly, and large grains.
Extrusive: Outside the Earth, volcanic, formed from lava, light-colored, low density, felsic, cooled off quickly, and small or no grains.
I think c. Is right because pollution can contaminate the entire world if we don't work together
