Where does denitrification happen?

at the roots of plants

in the air

in deep soil or anoxic aquatic sediment

all of the above

All of the following describe climate except it is hot today the average temperature of a place the average precipitation of a place the average number of sunny days of a place

Na+/k+-atpase is considered to be an electrogenic pump because

Which of the following is a dimensioning guideline? A. Use the least number of dimensions needed. B. Always dimension hidden lines. C. Put dimensions inside of objects. D. Line dimension numbers up in a row.

What does it mean to make "difficult choices" when creating a federal budget? A) deciding how to keep interest rates on the national debt low B) deciding which country to borrow from and finance spending C) deciding how much to lend and how much to

Geologists cannot yet predict earthquakes because

The mass of a newborn baby is 4.2 kilograms what is the baby's weight? (The acceleration due to gravity is 9.8 m/s2)

What holds the atoms together in a covalent bond

The sun is the centermost star of our solar system. a. True b. False

When an electron moves from a lower to a higher energy level

Which of the following is all matter made of? A. Hot particles B. Cold particles C. Constantly moving particles D. Nonmoving particles