What is the scientific name for the layer of gas that surrounds the earth?
a. lithosphere
b. hydrosphere
c. biosphere
d. atmosphere

Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.

Prompt compare the three types of volcanic mountains in terms of shape, type of eruption, and the minerals that make up the volcano

Moving down the ramp from 6 meters to