Ascientist wishes to learn about volcanoes and earthquakes which of the following spheres should she most directly study

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

Weathering is an example of an external force of change. question 2 options: true false

The percentage of people in the united states engaged in agriculture in 2000 was approximately a. 56% b. 38% c. 21% d. 2%