Supreme Court bans Mining, Factories within a Km of National Parks, Sanctuaries

Current Context: Recently, the Supreme court passed a judgment that bans mining and developmental activities inside national parks and wildlife sanctuaries and within a 1-km buffer zone around them.

• In addition, it has also been said that no permanent structures or prohibited activities will be allowed within the 1-km eco-sensitive zone around such parks and sanctuaries.
• The Supreme court has also clarified that for the activities that are already undertaken within the 1-km buffer zone may continue with the permission of the principal chief conservator of forests of the state or Union Territory concerned.
• The concerned authority will have to obtain permission within six months.
• Apart from that many activities like setting up sawmills and industries causing pollution, commercial use of firewood, the establishment of major hydroelectric projects, etc have been prohibited.

Question:

Q.1 As per Supreme court guidelines within ______ km of buffer zone bans mining and developmental activities.
a. 3 km
b. 2.5 km
c. 1 km
d. 4 km