The Ural Mountains and the Caucasus Mountains.
It was the planet Venus that made the spacecraft Magellan enable the scientists to make an extensive research. The spacecraft Magellan was a robotic space probe that was launched to observe the planet Venus and calculate the gravitational field of the planet.
Answer:
Where the pacific and Atlantic oceans each meets land.
Explanation:
A margin or boundary is the edge of a plate. in this case, a continental margin is the edge of the continent, where it meets with the oceanic plate.
<span>C.A floating pile of oil-soaked logs in the Cuyahoga River caught fire, and the resulting media attention led to the first Earth Day.</span>