Which of the following would be a direct and clear example of how humans negatively affect the hydrosphere? smoking

dumping used oil into street drains

poaching animals

landfills

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easy

explanation:

what in the weirdo : o

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: