Chemistry, 31.10.2019 07:31 apowers6361

Which action is the best example of a direct observation? identifying which bird was present by the tracks that it leaves in the sand at a beach reading numbers on a heat sensor to conclude that there is a deer in the night woods listening to a cricket chirp at night and counting the number of chirps per minute determining the seal population of an island by counting seals in 10 square meters of the island

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Which action is the best example of a direct observation? identifying which bird was present by the...