Answer:driving in traffic/directions
Explanation: you look at gps, decide which route you want to take, choose 1 route and decide if you believe it was the best or try others till you find one you think is best route
Explanation:
a current meter turns with the flow of the river a stream . The current meter is used to measure water velocity is predetermined points along a marked line
Answer:
The results are not able to be reproduced.
Explanation:
Generally, if an experiment is done and the results/similar results can not be reproduced then it can be considered invalid.
The protons and neutrons of an atom are found in the nucleus at the centre of an atom
