Question

savannas are a type of grassland that is usually found in tropical latitudes. they are warm or hot year - round, and the year is divided into a rainy season and dry season. up to 90 inches of rain falls during the summer rainy season every year. thats a lot of rain in just six months! in fact, scientists think that many savannas would become tropical rainforests if the rain occurred steadily throughout the year instead of just half of the year. much of the rainwater collects on the ground, forming watering holes that are vital to animals during the hot, dry winter. during the dry season, savanna grasses die and often burn up in wildfires. these fires explain why savannas dont have many trees; grass grows back quickly, but trees need more time to grow. savanna soil is not very fertile. usually only one or a few types of grasses grow in one area.
what is one important difference between savannas and tropical rainforests?
choose one option
a in savannas, rain is concentrated in a six - month period. in tropical rainforests, rain falls year - round.
b in tropical rainforests, rain is concentrated in a six - month period. in savannas, rain falls year - round.
c in savannas, many types of grasses, trees, and other plants grow. in tropical rainforests, only one or a few types of grasses grow.
d in tropical rainforests, most plants burn up in wildfires. in savannas, plants grow year - round.

Explanation:

To solve this, we analyze each option:

• Option A: The text says savannas have rain in a six - month (summer rainy season) period, and if savanna rain were steady year - round, they'd become rainforests (implying rainforests have year - round rain). This matches.
• Option B: It reverses the rain patterns of savannas and rainforests, so it's wrong.
• Option C: The text states savannas have only one or a few grass types, while rainforests have diverse plants. This option reverses that, so it's wrong.
• Option D: The text says savanna grasses burn in dry season wildfires, not rainforest plants. So this is wrong.

Answer:

A. In savannas, rain is concentrated in a six - month period. In tropical rainforests, rain falls year - round.