I'm being timed hurry please!Thank u! Organic material provides nitrogen for plants. Which soil component contributes the most nitrogen to plants?
O clay
O humus
O sand
O slit

What is the lowest number energy level where a d sublevel is found

Adepositional also feature that forms where a stream enters a lake or an ocean is a

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided