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3 years ago

What is a fine-grained material that has been transported and deposited by the wind ?

1 answer:

5 0

Answer: Loess is the fine grained material that has been transported and deposited by the wind. The answer is A.

Explanation:

Since the wind can carry these types of material (find grained) father than sand, and also higher up, they are generally found very far from their original place of origin.

Loess is no larger than 50 micrometers in size. It is coarse in texture like clay, but finer than a grain of salt.

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How do sedimentary rocks form on Earth’s surface?

erik [133]

Answer:

I am 95% sure its b, if not then it is c

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3 years ago

Which phrase describes one characteristic of radioactive elements?

Tpy6a [65]

Answer is B) decay at a constant rate

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2 years ago

The resting cell normally has a net negative charge with respect to the outside of the cell. what is this state called?

Zolol [24]

The answer is polarized state.

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3 years ago

A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con

IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by $70$ % people

Let us assume A1 s dominant genotype

This means $p= \frac{70}{100} = 0.7$

Thus, frequency of allele in the given population is $0.7$

It is also given that the population is in Hardy-Weinberg equilibrium thus

$p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3$

Frequency of fruit fly with genotype A2A2 will be

$q^2\\= (0.3)^2\\= 0.09$

As per Hardy-Weinberg's second equation of equilibrium

$p^{2} + q^{2} + 2pq = 1\\0.49+0.09+2pq = 1\\2pq = 1-0.49-0.09\\2pq= 0.42$

Hence, option C is correct

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2 years ago

What type of stars are located in the top right of the H - R diagram

mart [117]

Answer:

The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.

Explanation:

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2 years ago