Question

One of the reasons coal swamps were more extensive during the Carboniferous than they are today is that, during the Carboniferous,

A. Carboniferous climates were warmer than today's.

B. Continents, though smaller, were more numerous.

C. Continental margins were narrower and stood higher back then.

D. Larger areas of the continents were inundated by shallow seas.

Answer 1

D. Larger areas of the continents were inundated by shallow seas.

Step-by-step explanation:

One of the reasons coal swamps were more extensive during the Carboniferous period (358.9 to 298.9 million years ago) than they are today is that there were larger areas of the continents that were inundated by shallow seas. These shallow seas provided the necessary conditions for the growth and preservation of the vegetation that eventually became coal. The Carboniferous period was also characterized by a warm and humid climate, which further promoted the growth of vegetation in these swampy environments. Continental margins and the number of continents were not significant factors in the development of coal swamps during this period.

Answer 2

C. Contlnental margins were narrower and stood higher back then.