Relic Boundary is the correct answer :)
It's the picture of the Atlantic ocean. On average, the Atlantic Ocean is growing at a rate of about 2.5 cm/year.
So,
1. Since 2000, it grows about (2018-2000) x 2.5 = 45cm
2.( 2018 - 1492) x 2.5 = 1315 cm
3. 200 x 2.5 = 500 cm
4. The <span> Atlantic begin forming since mesozoic era</span>
Mountain chains and river systems generally run North-South throughout the continent thus making for formidable barriers to East-West expansion.
Yep
Explanation:
Because running water moves objects with a low enough mass.
