Answer:
c. they form adjacent to an intruding pluton, which provides heat for metamorphism.
Explanation:
- In metamorphic rocks, the contact metamorphism produces the aureoles in the surrounding zones of the rocks that get altered.
- There varies in the thickness from the from centimeters to several kilometers like the large granitic intrusions and they typically consist of non foliated rocks formed due to the heat sources and intruding plutons.
Answer:
An archipelago is a large group of islands.
Explanation:
There is a device called a thermometer for that...
Answer:
According to the nebular hypothesis, our solar system is formed from a huge rotating cloud made mostly of helium and hydrogen.
Explanation:
The nebular hypothesis was proposed by I. Kant. It explains the formation and evolution of the Solar System. It is considered and accepted widely. The theory states that the Solar System was formed from a nebulous material. And as per nebular hypothesis, stars create the huge, dense clouds of molecular hydrogen. This hypothesis tries its best to describe the formation of the solar system from a nebula cloud that was made of a collection of dust and gas. It is also believed that the sun, planets, moons and asteroids were also born around the same time that is, around 4.5 billion years ago from a nebula.
Answer:
Explanation:Destruction of natural vegetation is primarily caused by deforestation. Other major causes are wildfire and over-exploitation. Deforestation not only occurs as a result of firewood extraction by the local population but also as a result of the creation of arable as well as pastoral land.
