Answer:
The earth surface is getting hotter because of global warming
Explanation:
The answer is most likely the last option.
The answer false because icon don't resonance hybridization
The hormone described above is the hormone Melatonin.
Melatonin is a hormone secreted by the pineal gland in the brain, which helps regulate other hormones and maintains the body's circadian rhythm. This rhythm is an internal 24 hour clock that plays a critical role when we fall asleep and when awake. When it is dark the body releases more melatonin.
An educated guess is the best way to describe hypothesis