The Earth's atmosphere did not change until the last century
True or
False

false.

Explanation:

the earths atmosphere changed 4.6 billion years ago.

and there are only 100 years in a century.

hope this helped :)

False

Explanation:

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

what's the