Which of the following statement is based on scientific observation and reasoning?

(a). Some chemical compounds react differently in different human cultures.
(b). If a tree falls in a forest but this is never witnessed by a human, there are no physical or biological consequences.
(c). Many physical and biological phenomena lack any cause-and-effect; outcomes from one situation may be one way today and another tomorrow.
(d). Objects fall downward anywhere on the earth's surface regardless of the observer.
(e). A scientist records only the data that are easiest to interpret.


Answer: (d). Objects fall downward anywhere on the earth's surface regardless of the observer.

Biology & Microbiology

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