You would add H+ ions if you added an acid. Thus lowering the pH.
A formed, photosynthesis, uses sunlight and carbon an uses it for energy or glucose
Answer:
First, the last picture
second, the third picture
third, the second or first (the picture is blurr so i dunno)
then the last is, the fourth.
sorry if wrong.
Because they all need one another to survive. flowers need bees to distribute their pollen. and some animals relly on plants for food. and plants relly on the sun to be healthy
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What is A B C and D? You have to tell us what the options are so we can answer.