The correct answer is 'phenomenon'. A phenomenon is any event that is observable, however common it may be.
The answer is B, because the eclipse allows scientists to study the sun, a very rare treat
Answer:
Feeling
Explanation:
I think that brave is describing obama's feeling.
For experience for there future
Answer:
b
Explanation
2h đầu đi được 100km
3h sau đi được 90km
=> AB = 190km đi trong 5h
vận tốc trung bình = 190/5=38km/h
