One physical feature is a mountain.
Answer:
C. Carbon dioxide levels would decrease in the atmosphere as the weathering rate increased, acting as a positive feedback
Explanation:
The CO₂ concentration decreases due to large scale weathering process of silicate and carbonate weathering . The weathering of silicate and carbonates affect this way . As CO₂ in the atmosphere decreases the global temperature decreases , resulting in global cooling or ice age. During ice age we will have less precipitation .
Answer: Partial melting
Explanation: Partial melting occurs when the temperature is high enough to melt some of the materials that make up a rock but not all. This happens because a rock is not made up of a single material but different materials which have different melting points.
As the molten or melted rock cools down it crystallizes in a process known as fractional crystallization and this is how igneous rocks are formed.