UGC NET Questions (Paper – 1)

Statements A, C and D are all correct and together give a comprehensive picture of how household energy choices affect environment and health. Improved cookstoves lower fuel use and indoor smoke, clean fuels improve health especially for women and children and efficient appliances collectively reduce electricity demand and emissions. Statement B is incorrect because heavy reliance on biomass does contribute to pressure on local forests and woodlots. Therefore, the only combination that includes all true statements and excludes the false one is A, C and D only.

Option A:
Option A is correct because it selects exactly those statements that reflect established understanding of household energy and environment. It recognises technological improvements such as improved cookstoves, the health benefits of clean fuels and the systemic impact of energy-efficient appliances on national demand. By leaving out B, which wrongly denies forest impacts of biomass use, this option fully satisfies the requirement.

Option B:
Option B is incorrect because it omits statement D, which is a correct statement about the role of efficient appliances in reducing electricity consumption and associated emissions. While A and C are true, ignoring D means the combination does not capture the full set of correct statements about household energy.

Option C:
Option C is incorrect because it includes all four statements A, B, C and D and in doing so treats B as correct. Statement B is false, since unsustainable extraction of firewood and other biomass can degrade local forests and common lands. Including a clearly wrong statement makes the entire combination unacceptable.

Option D:
Option D is incorrect because it includes only C and D and leaves out statement A, which is also true. Although C and D are correct, excluding A means that one valid aspect—improved cookstoves and their benefits—is not represented, so this option does not list all correct statements.