The number of covalent bonds that an atom tends to form is equal to:

a: the number of valence electrons.

b: the number of unbalanced neutrons.

c: the number of unpaired electrons.

d: the atomic number.

e: the number of nearby atoms.

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

What is the difference between topsoil and clay?