ओजोन परत पृथ्वी की सतह को सूर्य से आने वाली निम्नलिखित में से किससे बचाती है?

In solid waste management, what is the main advantage of the sanitary landfill method over open dumping?

Which of the following gases is the primary precursor responsible for the formation of acid rain?

Why is there a need to adopt alternative energy sources for environmental pollution reduction?