Answer:
What keeps humans motivated on a regular basis.
Explanation:
depending on what you want to have a main focus on for the last part of the sentence you can change.
example
what keeps humans motivated to go to the gym
what keeps humans motivated to continue on in school.
I believe the correct answer is that the <span>speaker may forget ideas or make grammatical mistakes.
Extemporaneous speaking has a lot to do with improvisation - it is a speech where you get a topic you haven't prepared for, and then you have 10-20 minutes to prepare and speak. This way, you cannot memorize everything that you wanted to say, and given that you aren't completely ready to speak, you may make some mistakes.
</span>
Answer:
C) They enter into the water supply when it rains.
Explanation:
"When it rains, runoff from fertilizers and pesticides, which farmers use to help crops grow, can pollute the water"
