Question

part b
which evidence supports the answer to part a?
giant salvinia is poisonous to other plants that grow on the water’s surface.
giant salvinia produces waste products that are used by other plants.
giant salvinia releases carbon dioxide that other plants cannot use.
giant salvinia prevents light from reaching plants that grow underwater.
clear all
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Explanation:

Since giant salvinia preventing light from reaching underwater plants can impact the growth and survival of those plants, it is relevant evidence. The other options about poison, waste - product usage, and unusable carbon - dioxide release are not as directly related to the general impact of giant salvinia on other plants as the light - blocking effect.

Answer:

Giant salvinia prevents light from reaching plants that grow underwater.