Can you solve this science picture riddle?

Let’s test your knowledge about science-related rules and facts through this picture riddle.

In the photo, you see a monkey rotating the gear. There are several gears and there are two marks at the end; 1 and 2. When the monkey will rotate the gear, the last gear will hit either one or two.

You have to find out which mark will be hit.

If you are still confused, here is the answer to the science picture riddle.

We know that the gears in contact will be going to rotate in opposite directions. So, mark 2 will be hit.