Answer:
Neither is right, because the brain exhibits about 5% more activity when a person is focused compared to when they are unfocused.
Explanation:
Are you serious? Is this a 'trick' question? You don't know that silica has density greater than water? Trick Question....
I'm beginning to 'wonder' about this site. I'll bet you're stood-up by an ABC-Agency.
Who would ask kids this kind of question?
Info-miner's or 'profilers'!
Animals can offer people welcome friendship
Answer:
B
Explanation
becuase the bird cannot fly without applying force