1. The appearances of fireflies at dusk is an example of a circadian rhythm because it's happens daily. The correct option among all the options that are given in the question is the third option or option "c".
2. During migration, animals undertake a seasonal movement. The correct option among all the options that are given in the question is the first option or option "a".
Answer:
ECOLOGICAL FOOTPRINT
you would need about 41.6 earths all together
Explanation:
just add them up.
As such, it is a Carcinogen which is basically just a substance that is known to cause cancer.
Hope this helped :)
I'll give some help
if u know Country's it will be easier and if u know how the Country looks like it will make sense. Basically just read the bottom paragraph and it will make sense.
A stands out most to me, CO comes from the air and air is basically oxygen we breath. When we exhale CO comes out (of course). I would say A is correct.