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zysi [14]
3 years ago
12

In recent decades rainforests throughout the world have been cut down for various reasons. In some cases the wood has been used;

in others, the land. The deforestation of Earth's rainforests has resulted in A) the rapid extinction of many species on Earth. B) primary succession and evolution of new habitats. C) habitat destruction and the overall decrease in biodiversity. D) secondary succession and the development of new, successful ecosystems.
Chemistry
2 answers:
zloy xaker [14]3 years ago
7 0
C) one is the correct option
VikaD [51]3 years ago
7 0
<h2>Answer:</h2>

Correct option is C.

C) habitat destruction and the overall decrease in biodiversity.

<h2>Explanation:</h2>

Forests are very important and beneficial for human beings as well as other organisms. Deforestation can affect the environment in many ways. It can change the overall atmosphere of the earth. It can destroy the habitat of many species and can decrease the biodiversity.

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20m/s.

Explanation:

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What is the voltage of a circuit in a toaster with 12.0 amps of current and 8.0 ohms of resistance?
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Chlorofluorocarbons (CFCs) are no longer used as refrigerants because they destroy the ozone layer. Trichlorofluoromethane (CCl₃
Daniel [21]

Answer:

The molar entropy of the evaporation of Trichlorofluoromethan is 83.516 J/molK.

Explanation:

Entropy :It is defined as amount of energy which is unable to do work or the measurement of randomness or disorderedness in a system.

S=\frac{Q}{T(Kelvins)}

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The molar entropy of the evaporation of Trichlorofluoromethan :

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The molar entropy of the evaporation of Trichlorofluoromethan is 83.516 J/molK.

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Write the symbol for each of the following ions:
kap26 [50]

Answer:

a) _{31}^{71}\textrm {P^{3+}}

b) _{35}^{80}\textrm {Br^{-}}

c) _{90}^{232}\textrm {Th^{4+}}

d) _{38}^{87}\textrm {Sr^{2+}}

Explanation:

For neutral atoms:

Atomic Number (Z)= number of protons = number of electrons

Mass number (A) = number of protons + number of neutrons

For ions with positive net charge:

Number of protons = Z + net charge

For ions with negative net charge:

Number of protons= Z - net charge

a) A = 71, Charge = +3

Number of electrons = 28

Number of protons = 28 +3 =31

_{31}^{71}\textrm {P^{3+}}

b)  A = 35, Z = 45+35=80, Charge = -1

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Number of electrons = 36

Charge = Number of protons- Number of electrons =35-36 = -1

_{35}^{80}\textrm {Br^{-}}

c)  Charge = +4

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_{90}^{232}\textrm {Th^{4+}}

d)  Charge = +2

Atomic number = Number of protons = Z = 38

mass number = A = 87

_{38}^{87}\textrm {Sr^{2+}}

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