Explanation:
Olivine -
It is the primary component of the upper layer of mantle , Olivine is one of the common mineral present on the subsurface of Earth .
The structure of olivine is neosilicate . The general formula is
( Mg²⁺ , Fe²⁺ )₂SiO₄
It has an independent unit of SiO₄ , which is independent , having a tetrahedral structure .
Answer:
The right answer is:
4) a large area where the topography is made up of one landform .
Explanation:
A landform region is recognized as a feature of earth that was formed naturally. The landform regions have common characteristics such as soils, weather or vegetation.
The answer is false .............................
Answer:
I. and II.
Explanation:
Due to the difference in sunlight and precipitation on the leeward and windward side of a mountain range, the plant and animal species that can survive in each zone may differ considerably.
The rain shadow effect also occurs on the leeward side of the mountain where precipitation is blocked by the mountain range and thus prevented from falling on the far side. On the windward side of a mountain range, precipitation tends to be copious as the water vapour in most air condenses to form rain clouds as it rises up the slopes of the range.
Answer: B.
Air pressure decreases as you increase in altitude.
Explanation:
Gravity pulls the gas molecules towards the center of the earth. This pull of gravity becomes stronger and closer to the center at sea level. Air becomes dense at sea level where the gravitational pull is stronger. Gases at the sea level are also compressed by the weight of the atmosphere above them. The force of the earth weighing down over a unit air is known as atmospheric pressure. At higher altitudes, the atmospheric pressure is lower and the air is less dense than at higher altitude.
