It is the nimbostratus cloud.
Out of the choices given, the one that describes a substance whose atoms all have the same number of protons are an element. The correct answer will be B.
I would say C. petroleum
A is wrong
B is impractical for "mainly used"
D thats too expensive
Explanation:
Advantages of Common Names
The main advantage of using common plant names is ease of usage and common understanding in certain geographical areas and, conversely, the prevention of confusion among the laymen who do not understand Latin
.What are the disadvantages of common names?
These names may not be same every where in all places so in order to have universally similar name.
Creates confusion among different languages.
Cannot identify one particular species by common names.
1 liter= 1,000,000 microliters
20 mL= 20,000 microliter
I hope this helped ;)))
