HELP ASAP I WILL GIVE BRAINLIST An unknown solution has a pH of 7.1. Which of these chemicals is likely to increase the pH the most when added to the solution?

HF

KOH

NH3

HNO3

What feature of cell theory is best demonstrated in the image

In what for do plants utilize nitrogen? why do they need nitrogen?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism