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Which supercontinents were present on earth at the begining of the cretaceous period? a. laurasia and gonwana b pangea c. laurussia and gondwana d rodinia

asked Jan 2, 2020

Geography
middle-school

2 answers

3 votes

20.5k views

Describe how kidneys work

asked May 20, 2019

Biology
high-school

1 answer

4 votes

185k views

Find the sum of the first 4 terms of the series. 2-8+32-128+... a. –101 c. –102 b. –103 d. –104

asked Apr 12, 2019

Mathematics
high-school

1 answer

1 vote

107k views

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