Answer:
Answer is d
A weather front is a transition zone between two different air masses at the Earth's surface.
Explanation:
I think B. But I’m not sure
The ecosystem will expand its geographical range in the next 50 years
Answer:
Polar, subarctic, and temperate climates
Explanation:
polar: lack of warm summers or very cold.
Subarctic: Very cold and long winters.
temperate climates: environments with moderate rainfall spread across the year/parts