Which of the following is a potential drawback of heavy use of NPK fertilizers? -low levels of aluminum and manganese
-decrease in mineral salts
-increase in nitrate levels
-high soil pH

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Describe characteristics of a good respitory surface