Which human action would most likely increase the nutrients in an ecosystem? A. building a rock wall
B. fertilizing a cornfield
C. watering a flower bed
D. pulling weeds from a garden

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

How have the greenhouse gasses increased from the year 2000 to 2018