Tides, cause by gravity, is gradually showing down earth’s rotation speed. A million years from now, scientist predict that earth’s _____.
A. day is longer
B. year is shorter
C. day is shorter
D. year is longer
Answer:A
Tides, cause by gravity, is gradually showing down earth’s rotation speed. A million years from now, scientist predict that earth’s _____.
A. day is longer B. year is shorter C. day is shorter D. year is longer