Magnetic field is the d. core
Answer:
Deep lake sediments are usually muddy.
Explanation:
Deep lake sediments compares to those deposited near the coast in that they are usually muddy compared to the ones located near the coast.
- They are muddy because they are fine grained sediments with a rich assortment of clay minerals.
- As you progress from coast to deeper waters, the sediments continues to fine inward.
The soil that occurs in regions with extreme wet and dry seasons is known as "black soil."
Black soil:
- Chernozem is another name for black soil.
- It is largely composed of humus, phosphoric acid, phosphorus, and ammonia.
- Exceptionally small or clay-like particles constitute black soils.
- Deep gaps form during warmer weather, resulting in appropriate aeration.
Black soil characteristics include:
- It is extremely fertile and has a clay-like texture.
- At 25°C, the pH of black soil ranges from 7.2 to 8.5.
- The soil has high levels of potash, calcium, and magnesium but low levels of nitrate and phosphate.
- It is often soft when damp but hardens as it dries.
Know more about Soil at: brainly.com/question/19696600
