D- a bond in which electrons are transferred
<h2>Answer:</h2>
As John is testing the effect of temperature on the solubility of sugar in water. To test this, he will measure the amount of sugar dissolved at different temperature level.
And then he will compare and conclude this that at what temperature how much sugar dissolved and how saturated and supersaturated solutions show a difference in concentration of sugar dissolved on the temperature difference.
Answer:
a wild fire of a spreading fire that reaches a global span
Explanation:
The thalamus - serves as the relay center of the brain where most senses are routed for processing.