Lyla

SAT

13 July, 07:48

2. Giant salvinia is an aquatic plant that floats on water and reproduces

rapidly. When these plants die, decomposition by bacteria affects oxygen

levels in the water. As more plants die, less oxygen is available in the

water. Students observe a pond covered by giant salvinia. Which

statement is the best prediction the students can make about the

immediate future of the pond?

Giant Salvinia Floating on a Pond

O

The depth of the water in the pond will increase

Fish populations in the pond will begin to decrease.

O

The amount of bacteria in the pond will suddenly decrease.

The number of different types of plants around the pond will decrease.