Ascientist plans to find out if dams harm a river ecosystem. he interviews 500 enviormentalists and 450 of them believe dams are harmful to the ecosystem. the scientists concludethat 90 percent of people believe that dams are harmful. why is the scientist's comclusion most likely unrealible.

The answer is: the source of information could be biased

The scientist is interviewing environmentalists and then generalized their opinion as "people". An environmentalist is a person that cares about the environment, so they will more likely to deny the option that harms the environment. If the dam harmful to the environment, most environmentalists will not approve it.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

explanation:

mark brainliest and have a great day!

the wires in the toaster turning red and the toast crisping and turning brown