Which of the following is not true about soil *?

Good soil has high water absorption capacity. Soil does not contain moisture. Soil contains micro-organisms. Soil contains air.

Which of the following statement is not true of soils in sloped areas?

Which of the following statements is NOT true of soils in sloped areas? Smaller particles remain on the slopes, while coarser particles move downslope. Which of the following could increase the rate of chemical weathering of a rock? Increasing its total surface area.

Is soil static and does not change?

Soil texture is more or less a static property affecting almost all other soil properties. Land use capability and soil management practices largely depends on the texture.

Which would you expect to find extrusive igneous rock?

Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth’s surface. These are the rocks that form at erupting volcanoes and oozing fissures.

Which of the following is not a cause of soil erosion *?

Detailed Solution. The correct answer is Afforestation. Afforestation is not a cause of soil erosion.

Which is not considered a factor of soil formation?

Organisms, including flora and fauna, are not an independent factor in soil formation. Both continuously interact with climate, relief and soil parent material over time. Vegetation delivers organic material for humus formation and a forest regulates the climate of its surrounding.

What roles do earthworms play in maintaining soil stability?

What roles do earthworms play in maintaining soil stability? 1) They are essential in mixing soil and shredding waste and debris. They break down the detritus into small pieces that are then able to be chemically degraded. They release nutrients and minerals in the soil.

What is not an igneous rock?

The correct answer is option 2 i.e., Dolomite.

Which is the correct order of soil horizons starting at the surface?

Most soils have three major horizons — the surface horizon (A), the subsoil (B), and the substratum (C). Some soils have an organic horizon (O) on the surface, but this horizon can also be buried. The master horizon, E, is used for subsurface horizons that have a significant loss of minerals (eluviation).

What do worms do to soil?

Earthworms increase soil aeration, infiltration, structure, nutrient cycling, water movement, and plant growth. … They get their nutrition from microorganisms that live on organic matter and in soil material. When they move through the soil eating, earthworms form tubular channels or burrows.

Are worms beneficial to the soil?

Studies of earthworms in agricultural settings have found that earthworm burrows can improve water infiltration and soil aeration, and their castings (excrement) form soil aggregates by combining minerals and organic matter. Earthworm activity can also relieve compaction and make nutrients available to plants.

Why do worms live in soil?

Worms help to increase the amount of air and water that gets into the soil. They break down organic matter, like leaves and grass into things that plants can use. … These same 500,000 worms burrowing into an acre of soil can create a drainage system equal to 2,000 feet of 6-inch pipe.

Do worms have eyes?

No, not really. Instead, they have cells called receptors that can sense whether it’s light or dark. This allows worms to tell if they’re underground or above ground.