Answer;
The Huronian Supergroup <span>is </span>particularly<span> exciting and </span>interesting<span> because, by chance, these </span>rocks<span> were laid down at a period when the atmosphere underwent a transition from containing no free oxygen to containing at least some free oxygen.”
</span> Explanation;
The Huronian
Supergroup, a massive
formation of rock laid down
gradually between about
2.5 billion and 2.2 billion
years ago, precisely the
period when oxygen
began to accumulate in the
atmosphere. The Huronian Supergroup is 10 or 11
kilometers (six or seven
miles) thick and extends well below ground
That answer is D and the reason why
Answer:
apprehensive: anxious or fearful that something bad or unpleasant will happen
attentive: paying close attention to something.
bluff: an attempt to deceive someone into believing that one can or will do something.
contortion: a twisted or bent condition, state, or form.
debris: scattered pieces of waste or remains.
defiance: open resistance; bold disobedience.
egregious: outstandingly bad; shocking.
emerge: move out of or away from something and come into view.
foresight: the ability to predict or the action of predicting what will happen or be needed in the future.
habitation: the state or process of living in a particular place.
