Longest mountain range in the world above or below sea level

The Atlantic Ocean is the (North) (east) (south) (west) of the United States. Which one is true, those are my only options if its in all of them though.

Cycads and ginkgoes were important plants to the world's terrestrial ecosystems during the (select one): a. Paleozoic Era b. Cenozoic Era c. Mesozoic Era d. Precambrian

What is the bowl-shaped area around a volcano's central vent is called?

Lake Baikal is called too?

What were stalins 5 year plans

Explain how the types of mountain landforms are related to one another.

Explain how natural actions such as weathering, erosion (wind, water and gravity), and soil formation affect Earth's surface.

Which is stronger land building or erosion? write a paragraph answering this question

Name some Oceans and Gulfs?

Moving from coastal to interior regions of sub-Saharan Africa we discover that the dominant physical geographic feature is