Jonas mixes citric acid with baking soda. how does he know the reaction is endothermic?
a) the baking soda changes color
b) the citric acid forms gas bubbles
c) the temperature of the solution increases
d) the temperature of the solution decreases

(D) The temperature of the solution decreases.

Explanation:

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.