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What is the process of exfoliation?
Exfoliation is a form of rock weathering, also referred to as onion skin weathering. It is characterized by a layer by layer erosion of the outer surface of the rock caused by chemical changes to the composition of the minerals, by differences in temperature between the outer surface and the interior of the rock, or by the expansion and separation of the outer surfaces due to moisture absorption.
What are examples of weathering?
such as rain and sleet and snow,
How do you make a slide out of a pice of onion skin?
To make a slide out of an onion skin, prepare a clean glass microscope slide and cover slip. Gently peel a thin layer of the onion skin and carefully place it on the slide. Add a drop of water, then gently apply the cover slip over the onion skin to create a flat specimen. Carefully examine under a microscope.
Why the chloroplasts is not present in the onion cell?
You can't see chloroplasts in an onion skin cell since the onion was underground. When the onion is underground, the sun can't reach the onion so the onion skin cells can't make glucose. The onion does have chloroplasts in its cells at the top of the onion. That's where he sunlight can reach the onion.
How does the temperature affect the whales?
well. to say this correctly the normal temperature for a male whale would come to a 69 degree = not possible for a human to live under these conditions because of what whale do have such as good skin for all caused weathering.
Does Onion Skin Weathering Happen To The Earth?
No, onion skin weathering is not a process that occurs on the Earth. Onion skin weathering is a geological process that happens on certain types of rocks, where outer layers peel off due to changes in temperature.
What is onion skin weathering?
Onion skin weathering is a Geological process that happens mainly in deserts. As the rock heats up and expands by day, and cools and contracts by night, stress is often exerted on the outer layers. The stress causes the peeling off of the outer layers of rocks in thin sheets. Though this is caused mainly by temperature changes, thermal expansion is enhanced by the presence of moisture. Onion skin weathering has to do with rocks mostly in the desert. It is when the hot temperature of the day is then reduced to a cold temperature at night. This change in temperature causes layers of the rock to peel off like onion skin coming off. Therefore it is called onion skin weathering. Conclusion: Onion skin Weathering is when a rock heats up and expands (mostly deserts) And at night it cool and contract and layers of skin peels off
How long does onion skin weathering take?
Onion skin weathering can take thousands to millions of years to occur, depending on the climate, the type of rock, and the rate of weathering. It is a slow geologic process where outer layers of rock gradually peel away due to expansion and contraction from temperature changes.
Which type of weathering happens in a dry desert?
onion skin weathering
What is another name given to pressure release weathering?
onion-skin weathering
What is the geographical term for onion skin weathering?
EXFOLIATION
Where is onion skin weathering the most common type of weathering?
Onion skin weathering, also known as exfoliation, is most common in regions with hot and dry climates. This type of weathering is associated with extreme temperature changes, which cause rocks to expand and contract, leading to the peeling of outer layers like an onion skin. Areas like deserts and exposed mountain surfaces often exhibit onion skin weathering.
3 example of physical weathering?
Freeze - Thaw weathering Onion skin weathering Erosion from rain water
What are two processes that can break rocks apart?
freeze-thaw weathering and onion skin weathering.
What type of weathering need temperature changes to make them happen?
Freeze-thaw weathering, also known as frost weathering, requires temperature changes to occur. This process involves water seeping into cracks in rocks, freezing during cold temperatures, expanding, and then thawing when temperatures rise. This repeated freezing and thawing of water helps break apart the rock.
What type of weathering is caused by expansion and contraction of the rock?
This type of weathering is known as mechanical or physical weathering. It occurs when rocks expand and contract due to changes in temperature, which can cause them to crack and break apart over time.
What is onion skin wheathering?
Onion-skin weathering is a geological process that mainly occurs in the deserts. The rock experiences stress on the outer layers because of the heating and expansion during the day and the cooling and contracting at night. this process is achieved through changes in temperature.
