Answer:
summer
The North Pole stays in full sunlight all day long throughout the entire summer (unless there are clouds)
The change in internal energy of the combustion of biphenyl in Kj is calculated as follows
=heat capacity of bomb calorimeter x delta T where delta T is change in temperature
delta T = 29.4 -25.8= 3.6 c
= 5.86 kj/c x 3.6 c = 21.096 kj
<span>circumstellar is the answer</span>