What is the main responsibility of scientists when environmental laws are proposed

To make honest, ethical, presentations of data.

Explanation:

As you may already know, a scientist is the professional who establishes research, studies and experiments in a systematic way, with the main objective of attaining knowledge, proposing laws and scientific concepts that will make our lives better.

When scientists reach full knowledge in any scientific area, they must launch laws and theories that will allow other people to understand that knowledge. In relation to environmental science (and in any other scientific field), when a scientist proposes an environmental law it is important that this scientist makes ethical and honest data presentations, so that everyone will be informed correctly and consistently.

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explanation:

b. the carbon cycle ensures living things have a source of hydrogen