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Romashka [77]
3 years ago
13

Which process most likely forms rust on rocks? A. chemical weathering by oxidation B. mechanical weathering by ice wedging C. me

chanical weathering by wind D. chemical weathering by acid rain Question Resources
Biology
2 answers:
mylen [45]3 years ago
8 0

the answer is actually A. chemical weathering by oxidation .

chemical weathering works on rocks that contain iron. These rocks turn to rust in a process called oxidation. Rust is a compound created by the interaction of oxygen and iron in the presence of water.

adell [148]3 years ago
7 0

Answer: A. chemical weathering by oxidation

Weathering is a natural process in which the rock is broken down into small pieces and sediments under the influence of agents like wind, water and chemicals. Chemical weathering is a process in which the rocks breaks down due to the effect of the chemicals. It brings change in the chemical composition of the broken pieces and sediments distinct from the parent rock.

Rust on rocks is a an example of chemical weathering by oxidation. The rock mainly exhibiting elements which can be easily oxidized such as iron undergoes rusting this occurs because oxygen breaks the bonds between the elements in the rock. The internal structure of the rock becomes weak and results in rusting.

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After observing the F2F2 generation, what conclusion did Mendel come to?
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In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f
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Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

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