Which of the following factors can lead to desertification in the presence of natural drought?a. deforestation
b. sustainable grazing
c. underground mining
d. all of the above

Answers

Answer 1
Answer:

Answer : Option A) Deforestation.

Explanation : Factors related to deforestation can lead to desertification in presence of natural drought.

As natural drought hit area is an area which has low amount of water supply in the land. It is also called as below average precipitation land when drought area is deforested it will lead to desertification. As the plants in the drought area are the reason why their is at least low water is found, if these vegetation is deforested then it will lose its capacity to hold water and the land will be deserted.

Answer 2
Answer:

Answer:

The answers A

Explanation:

i just took the test


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Two most abundant elements in Earth's core are

Answers

Iron accounts for about 86% of the Earth's core and Silicon is next at only 6%. Iron is by far the most abundant element in the Earth's core. 

Which temperature is equal to 120. K?
(1) -153°C (3) +293°C
(2) -120.°C (4) +393°C

Answers

First of all, the formula for finding Kelvin is Celsius + 273
Therefore, if we subtract 273, we get the temperature in degrees
120 - 273 = - 153

Therefore, the answer is (1), or -153 degrees Celsius

Hope this helped!! :D

Final answer:

The temperature 120 K converts to -153°C. This conversion is made by subtracting 273.15 from the Kelvin temperature.

Explanation:

To convert Kelvin (K) to Celsius (°C), you subtract 273.15 from the Kelvin temperature. For example, 120 K becomes 120 - 273.15, equaling -153.15°C. Rounded, this is approximately -153°C. It's essential to note that 0 K is absolute zero, representing the lowest possible temperature, which corresponds to -273.15°C on the Celsius scale. Therefore, the correct answer is (1) -153°C. This conversion is fundamental in relating temperatures on the Kelvin and Celsius scales, where Celsius measures temperature relative to the freezing and boiling points of water, and Kelvin starts from absolute zero, the absence of thermal energy.

Learn more about Temperature Conversion

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The movement of organisms into a range is called A. immigration.
B. emigration.
C. population shift.
D. carrying capacity.

Answers

The answer is A. Immigration

A solution is considered basic or alkaline if its pH is _________ 7.A. equal to
B. less than
C. greater than

Answers

C greater than because anthing basic is 8 or up

How many moles of mgci2 are there in 332 g of the compound

Answers

find molar mass of MgCl2 so M=95.211 g/mol
N=m/M 
N=332/95.2
N=3.487
dont forget to round your sig figs 

Five liters of gas at STP have a mass of 12.5 g. What is the molecular mass of the gas? a. 12.5 g/mol
b. 25.0 g/mol
c. 47.5 g/mol
d. 56.0 g/mol
e. 125 g/mol

Answers

You have 12.5 grams. And 5 liters of some random gas. 

Step 1: You must find the mol amount of that 12.5g mass. 

12.5 / 5 = 2.5 mol 

Step 2: Now find the molecular mass of that gas "at STP" (STP- is 22.4 L) 

2.5 x 22.4 = 56 g/mol

Good Luck on Chemistry SAT, cause I know exactly where you got this question from.