<span>The mineral crystals in obsidian are too small to see without a microscope. This is because the rock cools so rapidly from magma that crystals barely have time to form. Obsidian is a normally happening volcanic glass framed as an extrusive molten shake. It is delivered when felsic magma expelled from a well of lava cools quickly with negligible precious stone development.</span>
Answer:
from top to bottom
Explanation:
North pole, northern hemisphere, equator, southern hemisphere, south pole.
Answer:
2,787
Explanation:
Currently there are over 2,787 active artificial satellites orbiting the Earth.
Answer:
In a cross between two black-haired guinea pigs, 20 offspring are born. If both parents were heterozygous, probability would predict that approximately 1 out of 20 offspring would have brown hair
Explanation:
The two parents crossed were heterozygous dominant black coat color, after crossing 75% gives dominant black color coat while 25% gives only brown coat color homozygous
Answer:
Lumle region recieve the highest amont of rainfall because of the presence of mountains to the north of this region that blocks the monsoon clouds originating from Bay of Bengal
