Select the incorrect statement

Options

A. Power petrol has a higher octane number than ordinary petrol .
B. Carbon footprint is a measure of Green House Gas emissions by a product .
C. Reforestation and afforestation are the two terms used for the process .
D. The correct sequence of the four layers of atmosphere is : Troposphere, Stratosphere, Mesosphere and Exosphere (Bottom to Top).

Answer

C

Explanation

Afforestation is the process of establishing forests in areas that have never been forested while reforestation is the restoration of forests in areas where forests were removed or destroyed .Hence , both the terms doesn . t signify the same process .Other statements given in question are correct .