Explanation:
....Advantages of Air Transport:
High Speed: It is the fast speed means of transport. ...
Minimum Cost: ...
Strategic Importance: ...
Easy transport of costly and light goods: ...
Free from physical barriers: ...
Useful for Agriculture: ...
Useful in natural calamities
...Disadvantages of Air Transport
Risky. Air travel is the riskiest mode of transport, since there can be considerable losses to goods, customer and crews as a result of a minor crash. ...
Cost. ...
Some Product Limitation. ...
Capacity for Small Carriage. ...
Enormous investment.
You got all of them right besides 4 it was he if i am not mistaken i will google it to make sure hang on
Answer:

Explanation:
you have to collect all terms then subtract the numbers an divide both sides by e 2e -1