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IgorC [24]
3 years ago
9

Which is a problem associated with the use of trees for biomass? I. Potential deforestation II. Burning fossil carbon III. Poten

tial soil erosion
Chemistry
1 answer:
BigorU [14]3 years ago
7 0

Answer:

Both Option (I) and Option (III)

Explanation:

Biomass is usually defined as those organic molecules that are obtained from plants and animals, in order to produce energy. It is a renewable resource. Some of the examples of biomass include wood, crop, animal fossil fuel.

A large number of trees are being cut down to construct these biomass energies such as woods. This results in the deforestation process where the forested areas are converted into empty dry soils. This results in the increasing rate of erosion because the prevailing wind and flowing water can easily carry away the topsoil and loses the fertility of the soil.

Thus, the correct answers are both options (I) and (III).

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What is the percent composition of each of the elements in Al(OH) 3 ?
stellarik [79]

Answer:

<em>Answer Below</em>

Explanation:

Percent composition by element

<u>Element </u>       <u>Symbol</u>  <u>Mass Percent</u>

Aluminium <u>Al</u>          34.590%

Hydrogen <u>H</u>          3.877%

Oxygen         <u>O</u>          61.533%

3 0
3 years ago
Read 2 more answers
6. Which group of compounds is described as insoluble?
Sedaia [141]

Answer:phosphates are insoluble in water

Explanation:

3 0
3 years ago
How many times greater is one gallon than one quart
horrorfan [7]
4, because there are 4 quarts in 1 gallon. 

Another way to think about it is 1 gallon= $1 and 1 quart= 25 cents 
There are 4 quarters in a dollar.

Hope this helped..
8 0
3 years ago
Which of the following is true of group 6A?
USPshnik [31]

Answer:

The answer to your question is: Includes sulfur and gain two electrons

Explanation:

Includes Chlorine  This option is wrong, Chlorine belongs to group VII.

Includes Sulfur  This option is true, Group VI includes Oxygen, Sulfur, Selenium, Tellurium.

Gain 2 electrons . This option is true, Elements in group VI have six valence electrons so they gain to electrons to become estable.

Tend to form +2 ions  This option is wrong, this elements form -2 ions

Have 5 valence electrons This option is wrong, this elements have 6 valence electrons.

7 0
3 years ago
Based on what basis the elements had been arranged
salantis [7]

Answer:

B

The increase in the atomic number

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