Answer:
A. are brought from the mantle to the surface in magma that hardens into kimberlite
Explanation:
Diamonds are brought to the surface from the mantle in a magma that is known as the kimberlite. This kimberlites is rich in gases and it is an igneous rock that has the following minerals,olivine, phlogophite, serpentine etc.
The origination of diamonds in the mantle happens as carbon transformation occurs due to heat and pressure occurs. The kimberlite pipes and what brings the diamonds to the surface
Answer:
The geography of Ancient China shaped the way the civilization and culture developed. The large land was isolated from much of the rest of the world by dry deserts to the north and west, the Pacific Ocean to the east, and impassable mountains to the south. This enabled the Chinese to develop independently from other world civilizations.
Explanation:
C is the answer both a and b
Answer:
<u>North Atlantic Ocean</u>
Explanation:
- Gulf stream that forms the extension of the North Atlantic drift and is a warm ocean current that stretches through the tip of Florida and flows through the eastern coast of the United States and reaches the Newfoundlands before crossing the Atlantic ocean and is known to reach the Mexican gulf also.
- At 40°0′N 30°0′W, it separated into two streams as a northern stream, the North Atlantic Drift, and hence influence the climates of the eastern coast of North America and the climates of western Europe.
- This steam typically stretches from 100 kilometers and is 3,900 ft deep. And stream carries warm waters across Atlantic and this is a reason for the intensity of cyclones.
