A statement that can be proven by observation or measurement is known as a(n): a.
opinion
b.
value
c.
fact
d.
belief

Please select the best answer from the choices provided

A
B
C
D

The correct answer for this question is that a statement that can be proven by observation or measurement is known as a fact. The other possible answers here simply refer to idea that different individuals can place value on, but that are not necessarily known to be true.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).