Surface area — if the rock is broken down into small pieces, it undergoes chemical weathering more readily than does one large piece. Smaller pieces have more surface area for water and gases to react with the rock. Mechanical weathering is effective at increasing surface area.

Rocks break down into smaller pieces through weathering. Rocks and sediment grinding against each other wear away surfaces. This type of weathering is called abrasion, and it happens as wind and water rush over rocks. The rocks become smoother as rough and jagged edges break off.

Abrasion is a process of erosion which occurs when material being transported wears away at a surface over time. It is the process of friction caused by scuffing, scratching, wearing down, marring, and rubbing away of materials. Objects transported in waves breaking on coastlines cause abrasion.

Abrasion is another form of physical weathering that causes rock to deteriorate over time. As water in the stream flows, it causes rocks to collide with one another, wearing off any rough edges. Wind can also aid in abrasion.

Abrasion is another form of mechanical weathering.

Answer: The surface area of a rock and the rate of weathering is directly related to one another. When a rock of large surface area is exposed to the atmosphere, then the factors such as rainfall, temperature, wind will affect the rock by weathering and erosion, depending upon the latitude of the area.

physical weathering

Weathering that involves carbonic acid is a type of chemical weathering in which carbonic acid reacts with calcite to form limestone. For many years when carbonic acid has weathered so much limestone that it forms caves. Hence, the correct option is C as it shows caves due to reaction with carbonic acid.

CLIMATE: The amount of water in the air and the temperature of an area are both part of an area’s climate. Moisture speeds up chemical weathering. Weathering occurs fastest in hot, wet climates.

Plants can only cause mechanical weathering. Mechanical weathering is more rapid in warm, wet climates.

Weathering (breaking down rock) and erosion (transporting rock material) at or near the earth’s surface breaks down rocks into small and smaller pieces. If the newly formed metamorphic rock continues to heat, it can eventually melt and become molten (magma). When the molten rock cools it forms an igneous rock.

Weathering is the mechanical and chemical hammer that breaks down and sculpts the rocks. Erosion transports the fragments away. Working together they create and reveal marvels of nature from tumbling boulders high in the mountains to sandstone arches in the parched desert to polished cliffs braced against violent seas.

Carbon dioxide from the air is dissolved in rainwater, making it slightly acidic. A reaction can occur when the rainwater comes into contact with minerals in the rock, causing weathering.

Acid rain can benefit the environment by blocking one of the most powerful greenhouse gases, scientists said yesterday. Acid rain, produced by industrial emissions of sulphur dioxide, destroys forests and kills fish and other aquatic animals. …

Acid rain is responsible for severe environmental destruction across the world and occurs most commonly in the North Eastern United States, Eastern Europe and increasingly in parts of China and India.

Some acid rain occurs naturally, but sulfur dioxide and nitrogen oxide emissions from smokestacks combine with rain to make sulfuric and nitric acid in amounts that harm the environment. The region of the United States most harmed by acid rain is the East Coast, including the Appalachian Mountains and the Northeast.

Pure distilled water should be neutral with a pH of 7, but because it absorbs carbon dioxide from the atmosphere, it’s actually slightly acidic with a pH of 5.8.