Match the environmental remediation method to its description.
soil vapor extraction
air sparging
bioventing
natural attenuation
Air is bubbled through groundwater to
remove volatile organic pollutants.

Natural processes break down the
pollutants.

Air is circulated through perforated
pipes in the contaminated soil.

Air is pumped into or out of soil to
supply oxygen to microbes.

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher

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.