Pretty sure it’s a) Carbon, if not tell me.
Indirect relationship: relationship between two variables which move in opposite directions.
If temperature decreases, number of spiders would increase.
Answer:
heat
Explanation:
the heat required to raise the temperature of a unit
A thermometer because it is the only tool that measures temperature.
Explanation:
thermal changes are those in which heat exchange is involved like endothermic and exothermic
while in chemical changes collision between the reactant occurs which result into product