The correct answers are:
- Energy is the largest use of the world's resources;
- We have enough oil for the next forty years, if its use continues as expected;
The largest and most important usage of the world's resources is the energy. It is what moves the industry and technology forward and enables it to develop, as well as becoming bigger and more productive.
The oil is the most important and most used of the fossil fuels worldwide. But the oil is limited in reserves, and since there's and ever-growing demand for it, the reserves are spent quicker and quicker, so the time of their demise is coming in the very near furture if this tempo of their usage and growth in usage continues.
