Porque que quando a terra esta mais proxima do sol a temperaturas mais amenas?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

Find the mass, in grams, of 5.00*10^23 molecules of f2