Frederick applies different brands of fertilizer to his pizza crops to determine which will make his delicious snacks grow the tallest. What is his dependent variable?

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

Why does bubbling occur when vinegar mixed with baking soda

The picture shows a location in india that is very dry and arid. notice the tall mountains in the background; you can find high amounts of vegetation on the other side of the mountains. which statement is most likely true for this area?