<span>B is the correct answer. Concerns have been raised over the production of biofuel, particularly ethanol, because it requires more crops to make it. This can be bad for the soil and may also have a knock on effect on food prices.</span>
Biofuel is produced from crops that is why they can<span> have </span>a right away<span> impact on the land </span>and therefore the atmosphere<span>. </span>one in all the key<span> reasons for manufacturing</span><span> biofuels is </span>to scale back greenhouse emission<span> and to mitigate </span>the consequences of global<span> warming </span>created<span> by fossil fuels. Since biofuels </span>will be made of<span> renewable resources, they cause less pollution to </span>the earth<span>. They </span>unharness<span> lower levels of </span>greenhouse emission and many other<span> emissions </span>once they are<span> burnt.</span>