The answer is below!
A.rotation of the earth .
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I believe it would bc C. Obtuse because a right angle is 90 degrees and sense it's greater than 90 that would make it obtuse.
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Answer:
The savanna is a dry grassland type ecosystem. The plants are sturdy and tough and the animals are one of three kinds: prey, hunter, or scavenger. They form a tough ecosystem
Explanation:
The answer is A, four weeks (the lunar cycle is about 29.5 days).
