Answer:
Human activity - Produces greenhouse gasses.
Greenhouse gasses - Cause atmosphere to trap more heat.
Sun's output - Can vary.
Ice age - Peaked 20,000 years ago.
Explanation:
Human activity includes the usage of fossil fuels on a very large scale, and by using them we release huge amounts of greenhouse gasses into the atmosphere.
The greenhouse gasses have the ability to trap the heat that is reflected from the surface of the planet, thus keeping more of it in the atmosphere and causing global temperature rise.
The sun is technically a star, thus an object that produces energy and light, and like every star, it has variations in its activity in accordance with the processes going on on it.
There have been numerous ice ages through the geological past, and the last one of them ended only around 10,000 years ago, with its peak being just 20,000 years ago.
Answer:
The correct answers are A, B, and E.
Explanation:
In Latin America, Native Americans were the first settlers. They impacted Latin America with their traditional cultures. Europeans arrived in Latin America in the late 1400, other settlers include Spanish, Portuguese and Africans ( brought in as slaves in 1500).
These settlers influenced Latin America in terms of food, culture, music, religion, and art. Most regions in Latin America adopted the languages of European countries. Spanish became the official language in most countries inclusive of Latin America.
Mineral of volcanic origin with large crystals is formed by magma that cooled off deeper into the crust.
Explanation:
The rocks of volcanic origin are divided into two main categories by the place of formation, extrusive igneous rocks and intrusive igneous rocks. The extrusive igneous rocks are the ones that form on the surface or near the surface. The intrusive igneous rocks are the ones that form deeper into the crust.
The intrusive igneous rocks are formed by magma that has managed to penetrate the crust, but didn't managed to come to the surface. It started to cool off slowly over longer period of time, thus solidifying. Because the solidifying has been very slow, the minerals formed in this manner have big minerals, as they had time to grow.
Minerals of this type are:
- granite
- diorite
- peridotite
- gabro
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Answer:
Athens and Sparta were Greek city-states
