Answer:
D
Step-by-step explanation:
The most common way to raise the pH of soil is to add pulverized limestone to the soil. Limestone acts as a soil acid neutralizer and consists of either calcium and magnesium carbonate or calcium carbonate. These are called dolomitic limestone and calcitic limestone respectively.
D because a rational number can be converted into a fraction and the square root of 5 cannot be covert into a fraction because it equals 2.2
Answer: -1
Explanation:
-a - (-8) + b
-a + 8 + b (because the - - signs cancel out)
-(2) + 8 + (-7)
-2 + 8 - 7 = -1
