Answer:
The answer is letter B
Explanation:
the release of fly ash into the atmosphere. Because pollution control standards now require that it be captured prior to release by fitting pollution control equipment.
Answer:
The plates are moving towards each other. they usually involve a continental and oceanic plate. The oceanic plate is denser than the continental plate as they move together the oceanic plate is forced under the continental plate. The point at which this happens is called the subduction zone.
Explanation:
The correct answer is - A) subsistence farming.
Subsistence farming is the type of farming that is mostly practiced in the less developed countries. In here we have production that is just about enough for the needs of the country (and big portion of the production doesn't even come out on the home market, but you eat what you produce, or trade with someone you know). Also this type of farming is still based on primitive tools and is heavily dependant on the climate, and that makes it very unstable and more often than not people are starving because not enough food has been produced.
The great rift valley was formed by violent subterranean forces that tore apart the earth's crust. These forces caused huge chunks of the crust to sink between parallel fault lines and force up molten rock in volcanic eruptions.
