Why do earthquakes occur at the margins of tectonic plates?

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

What is the term for a water wave that is created by an underwater earthquake?