10. A recent report about the amount of plastic created in the last 65 years stated that the 8.3 billion tonnes produced is as heavy as 25000 Empire State Buildings in New York or a billion elephants.
On that basis, how many elephants have the same total weight as the Empire State Building?
A 4000
B 40000
C 400000
D 4000000
E 40000000
10. B We are told that the weight of 25000 Empire State Buildings is equal to the weight of one billion elephants. So the Empire State Building weighs the same as $\frac{1000000000}{25000}$ elephants $=$ $\frac{1000000}{25}$ elephants $=40000$ elephants.