The threshold velocity for silt is _____. higher than the threshold velocity for sand lower than the threshold velocity for sand the same as the threshold velocity for clay

Answers

Answer 1

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The threshold velocity for silt is lower than the threshold velocity for sand

Answer 2

Answer:

Answer:

The correct answer is option B, lower than the threshold velocity for sand

Explanation:

Threshold velocity of the soil is the velocity where soil has overcome the gravitational force and the inter particle force and it starts moving. The factors which affect the threshold velocity of soil are –

a) Lower the sand content , higher will be the threshold velocity

b) Size of aggregates in the soil – the larger the size of the aggregate the larger will be its velocity

c) Size of soil particles – soils with soil particle size greater than 1 mm shall move easily.

Considering all the above three factors, it is clear that the threshold velocity of silt is lower than that of sand as the sand content in silt is high and also its particles are finer than that of sand particles.

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The condition in which an organism has extra sets of chromosomes is called polyploidy.

Answers

The statement above is a true statement. The condition in which an organism has extra sets of chromosomes is called polyploidy. This polyploidy cell is an organism that has two sets of chromosomes. Most species have two sets of chromosomes, each one of these are inherited from the parents.

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Answers

I believe the answer is extinction

True or false in a physical change, the substance doesn't change its identity

Answers

In a chemical change, a substance cannot change back to the form it used to be in.
Ex. A Rusty Nail
In a physical change, it is reversible to change back into how the substance was; shape or size.
Ex: Freezing liquid is a physical change
I hope you can find the answer to this question with my details!
Hope this helps:)

A physical change are changes which alters a substance without changing its composition. So physical means without changing its substances. For example if we changed a persons appearances it would be a physical change, but that doesn't change who they are as a person or their identity. So, true.

What organelle is the location of ribosome production

Answers

In bacteria ribosomes are produced in the cytoplasm while in eukaryotric cells the NUCLEUS and CYTOPLASM are both sites of ribosome synthesis.

Note: Ribosomes are crucial organelles in any cell because they are the site of protein synthesis and protein is what makes up enzymes and other important cell structures.

Which adaptation is used by polar bears to maintain internal homeostasis in cold temperatures?

Answers

What polar bears do to keep their temperature at a steady pace in cold temperatures is that they eat enough food to have a steady source and supply/constant amount of fat. Fat acts as an insulating agent and bears have plenty of it. This also explain why a lot of other animals who live in very cold climates have a lot of fat on their bodies.

In a pea plant, yellow seeds are dominant and green seeds are recessive. a pea plant that is homozygous dominant for seed color is crossed with a pea plant that is heterozygous. what percentage of the offspring from this cross would be heterozygous?

Answers

The percentage that the offspring will be heterozygous is 50%.

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