One way to avoid an overgrowth of toxin-producing algae would be to reduce or eliminate

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

the contamination

we are putting to many trash.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.