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Weathered rocks transform into soil through a combination of physical and chemical processes. As rocks break down due to weathering, they release minerals and smaller particles that mix with organic matter from decaying plants and animals. This mixture creates a nutrient-rich layer known as soil, which supports plant life. Additionally, biological activity, such as the movement of earthworms and other organisms, further enhances soil structure and fertility.
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What can cause igneous rock to become soil?
Igneous rocks can become soil through the process of weathering, which involves the physical and chemical breakdown of rocks into smaller particles. This can be caused by factors such as temperature changes, exposure to water, and the actions of plants and organisms. Over time, these weathered particles can mix with organic matter to form soil suitable for plant growth.
What forms when rocks are weathered and eroded?
Sediment is formed when rocks are eroded or weathered in water. When the process occurs on land, the smaller pieces of rock mix with organic matter (plant, animal or spoor), and eventually become soil.
What is weathered or decomposed rock?
Weathered or decomposed rock refers to the process where rocks are broken down into smaller pieces through exposure to elements such as water, wind, and temperature changes. This process can lead to the formation of soil as well as changes in the chemical composition of the rock.
What are rock composed of weathered rocks called?
Weathered rocks that are composed of smaller fragments and grains are referred to as sedimentary rocks. These rocks are formed through the process of erosion, transportation, deposition, and lithification of the weathered materials.
What are sedimentary rocks of weathered rock fragments called?
Sedimentary rocks made of weathered rock fragments are called clastic sedimentary rocks. These rocks are formed from the accumulation and cementation of fragments that have been weathered, eroded, and transported from their original source. Examples include sandstone, shale, and conglomerate.
Which is the layer of soil that contains of weathered rocks?
The layer of soil that contains weathered rocks is the subsoil. This layer is located beneath the topsoil and consists of partially weathered rocks and minerals.
What substance is a mixture of organic matter and weathered rocks?
Soil is a mixture of organic matter and weathered rocks. Organic matter comes from decomposed plant and animal material, while weathered rocks contribute minerals and nutrients to the soil.
How does soil from?
Soil is formed by weathered rocks and humus (organic matter)
Why is the movement of weathered rocks and soil?
erosion and or transportation
Describe the composition of soil as consisting of weathered rocks and decomposed organic material?
Soil is made up of minerals from weathered rocks, such as quartz and feldspar, as well as organic material from decomposed plants and animals. The organic material provides nutrients for plants to grow, while the weathered rocks contribute to the soil's texture and structure.
Are igneous rocks made when layers of weathered rocks or soil is compacted?
No that is a metamorphic rock
Is weathered intrusive or extrusive?
Neither, at the surface all rocks become weathered.
Which of the following is composed of weathered rocks and decomposed organic material from dead plants and animals?
The answer is Soil!
What does clay and sand gravel and silt have in common?
They are formed when rocks are weathered. They are found in the soil
Are weathered rocks only components needed to form soil?
Yes, weathering slowly does break down rocks and makes them pebbles and then soil, but it takes years.
Why parent material control soil formation?
Are the rocks,boulders,stones ect. That has been weathered over a certain geological period of time ,breaking down the rocks,boulders ect into smaller rock particles and then into smaller rock particles until they become the soil
Does soil have weathered rocks and decomposed organic material in it?
Yes, soil is composed of weathered rocks, minerals, decomposed organic material (humus), water, and air. This mixture forms the top layer of the Earth's surface and provides a medium for plant growth.
