A the flowering of the four oclock plant at the same time
Direction and Displacement would be your answer.
Answer:
B. Fossil
Explanation:
According to National Geographic, "Fossils are the preserved remains, or traces of remains, of ancient organisms." When you find the impression of a leaf, the leaf imprint is the preserved remains of the leaf.
The answer is
C. Both systems help remove carbon dioxide from the body.
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The Answer Is : Acid Drainage