Which answer is it
0.32 m/s
3.2 m/s
9.8 m/s
40 m/s

3.2 m/s

Explanation:

you take the amount of blocks height wise, and the number of blocks with wise, and divide. height over with, so in this case 16/5. 16 divided by 5 is 3.2  

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."