what are the main agent of weathering name any two.
Answers
Answer:
water(in form of flood) and air (in form of storm)
Answer:
When rocks, land formations and minerals begin to break down and dissolve, it’s called weathering. After crumbling, the process of erosion transports these broken bits away by wind or rain. Agents responsible for weathering include ice, salts, water, wind and plants and animals. Road salt and acids represent a form of chemical weathering, as these substances contribute to the wearing away of rocks and minerals as well.
Chemical Weathering
Chemical weathering, such as oxidation or hydrolysis, occurs when heat and moisture react with chemicals in the rock to change its properties. Oxidation occurs when oxygen creates a chemical reaction, like rust on iron, which makes the rock softer with time. Hydrolysis occurs when water reacts with compounds in the rock to create other compounds. You can identify chemical weathering because the rock becomes a different color, such as orange, red or yellow.
Biological Weathering
Biological weathering includes the effects of plant and animals on rocks and minerals. For example, an animal inadvertently kicks a rock down a hill where it breaks upon landing. Or when a bit of moss or lichen attach itself to its new host, a shaded rock and begins to eat away at the rock material, slowly breaking it down into smaller pieces. Plants or trees that take root in a crack of a rock can cause the rock to break apart as the plant grows and expands.