Answer:
Explanation:
Its the 2nd one on the left (the bolded one)
Collaboration in science is important because if only one scientist does an experiment, and gets a result, he/she could have messed. So this is where collaboration comes in. A few other scientists could try the experiment, and if they get the same answers, the result may be proven correct.
Hope this helped!
Except for climate which has changes over the eons.