What type of landscape made up most of the land during the Carboniferous period

Characteristic of the Carboniferous period (from about 360 million to 300 million years ago) were its dense and swampy forests, which gave rise to large deposits of peat. Over the eons the peat transformed into rich coal stores in Western Europe and North America. The name "Carboniferous" refers to this coal.

Explanation:

B. Coastal San Diego sees way higher temperature changes than El Cajun

Explanation:

Since Coastal San Diego is near the ocean it will experience temperature changes such as being hot during the day and colder during the night since because of the ocean breeze and the inland is not much affected since there are no major factors contributing to temperature change there.