Geography, 01.01.2020 00:31 wobblewobbley

Describe the factors that control the rate of chemical weathering and those that control the rate of physical weathering

Answers: 1

Show answers

Answers

The rate of chemical weathering is controlled by such things as the temperature, the amount of rainfall and the surface area of the minerals which constitute the rocks. Rocks with a finer grain size have more surface area than coarse-grained rocks so are more susceptible to chemical weathering, like a volcanic rock compared to a granite, say. With higher temperatures and greater rainfall, chemical reactions in the rocks are facilitated and this is why, for example argillic (clay alteration) alteration is so well developed in the tropics (in El Salvador for example and also why the lateritic soils develop in countries like Indonesia and can contain economic amounts of nickel for exampl) . A factor which controls the rate of physical weathering could be the development of glaciers which transport rocks in their bed, which shapes these boulders and also scores the rocky surfaces these scrape over as the glacier moves. Alternate freezing and thawing in the spring time in the northern hemisphere can speed up the breakdown of the rock by cracking it or opening up pre-existing joints and faults.

and also the surface area of the minerals being attacked.

Answer from: mileskamron979

Physical Weathering: Rainfall, Winds, and frost.

Chemical Weathering: Rock Composition ( Minerals and their solubility) and Climate.

Explanation:

Physical Weathering

Rainfall is a factor that produces Saltation, a process that transports the loose materials from the rock and carries them down through the water flow created by rainfall.

Winds over time can break down the surface or the rock and transport the loose materials, This process is augmented on low vegetation and sandy regions of the world.

Frost weathering refers to a series of processes in which the water present in the rock freezes altering the physical composition by fracturing the rock trough the openings where liquid water once entered.

Chemical Weathering

Rock composition is vital when studying chemical weathering, depending on if the minerals present in the rock are soluble or not the chemical weathering will be stronger and faster. Exposed rock suffer from atmospheric variables such as Temperature and humidity and in hot and humid regions the chemical weathering is faster, for example, coastal regions are more sensitive to chemical weathering than a central region.

Answer from: Quest

Europe needs to build a trump-like wall that will spread across europe making it impossible for migrants to cross they need to spread pig guts all over this wall so the muslims will never consider crossing into europe..you might be asking "can't they just fly over with planes? " well yes they can so we will install thaad missile protections system to shoot down any aircraft that violates europe's air fourth would be to start a fourth reich in germany.. last but not least.. make europe great again!

Answer from: Quest

the part i "agree with' is " it should not matter what color their skin is or what their cultural beliefs are." but for the main part i agree with it all or if cause now and days there are some people don't get the job cause there skin color and there beliefs and some times they don't even get the same repest as white people. we are all equal.

Another question on Geography

Geography, 23.06.2019 11:00

Religious conflict in northern ireland started with a) cultural differences resulting from viking invasions around 800 b) england’s split from the catholic church in the 1500s c) rebellions in ireland between 1916 and 1921 d) the norman invasion of england in 1066

Answers: 1

Answer

Geography, 23.06.2019 13:00

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)

Answers: 2

Answer

Geography, 23.06.2019 16:00

Which phrase describes the time it takes for a planet to make a complete rotation

Answers: 2

Answer

Geography, 24.06.2019 11:00

What direction is new hampshire from connecticut