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4 years ago

Carbon forms different types of bonds using the four electrons in

Biology

2 answers:

solniwko [45]4 years ago

4 0

The correct answer is B.

Llana [10]4 years ago

3 0

Answer:

B. Its innermost energy level.

Explanation:

Carbon has six electrons, four of which are located in its valence shell. Thus, the tetravalent carbon makes four covalent bonds to achieve its chemical stability. These connections are made at your innermost energy level.

It can bond with other carbon atoms, chaining together, to form numerous types of chains. The carbon atom binds to hydrogen and other common elements in organic compounds such as oxygen (O), nitrogen (N), sulfur (S), halogens (Cl, Br, F, I), etc.

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Agriculture led to an increase in the size of the human population. Which of the following was the most important impact of agri

klemol [59]

Answer:

The answer is the first option.

Explanation:

Farming emerged because being a nomad was no longer suitable for increasing population size. Farming allowed people to stay in one place and properly feed their families, which was a definite positive impact on population size.

8 0

3 years ago

Why is mutation beneficial to the process of evoloution?

frozen [14]

<span>Many mutations do produce changes in phenotype,I</span>t helps the bodies of the species to re-adapt to more locations and habitats.

8 0

3 years ago

4/10

grin007 [14]

The gravitational potential energy of Sara at the given height is 10594.8J.

Given the data in the question;

Mass of Sara; $m; = 60kg$

Distance from ground; $h = 18m$

Acceleration due to gravity; $g = 9.81m/s^2$

Gravitational potential energy; $U = \ ?$

<h3>Gravitational Potential Energy</h3>

Gravitational potential energy is the potential energy an object with mass posessses relative to another object with mass due to gravity.

It is expressed as;

$U = mgh$

Where m is mass, h is height and g is acceleration due to gravity.

To determine the gravitational potential energy of Sara, we substitute our given values into the expression above.

$U = mgh\\\\U = 60kg * 9.81m/s^2 * 18m\\\\U = 10594.8kgm^2/s^2\\\\U = 10594.8J$

Therefore, the gravitational potential energy of Sara at the given height is 10594.8J.

Learn more about gravitational potential energy: brainly.com/question/3910603

8 0

2 years ago

The American Curl is a breed of cate that has curly ears. The allele for curly ears is dominant. Suppose a male cat with the het

Tom [10]

Cc * cc = Cc, Cc, cc, cc

Cc : 50% cc: 50%

Three kittens will have the genotype for curly ears and three won't have the genotype for it.

7 0

3 years ago

Where is over 95% of incoming ultraviolent radiation absorbed

zheka24 [161]

Answer:

Over 95% of incoming ultraviolet radiation is absorbed in :

A. The Stratosphere.

Explanation:

Stratosphere is the second layer of the earth's atmosphere that lies next to the troposphere.
This layer experiences very little turbulence of air and is very significant because of the presence of Ozone layer in it.
The UV rays entering the Earth's atmosphere, photo dissociates ozone into O₂ and O. But these molecules quickly recombine to form ozone.Thus, stabilizing the concentration of ozone in the atmosphere.
During this photo dissociation UV radiations loses much of its energy. Thus, 95% of incoming Ultraviolet radiation gets absorbed in the Stratosphere.
Absorption of ozone UV radiation increases exponentially with the thickness of ozone layer.

7 0

3 years ago