MHT-CET · Biology

Environmental Issues (Class 12)

Pollution (air, water, soil), greenhouse effect, ozone depletion, deforestation, e-waste.

Test yourself on Environmental Issues (Class 12)

5 real MHT-CET questions with instant answers — no signup, ~3 minutes.

Take the 5-question quiz →

Study notes are still being prepared.

Don't wait — Shishya can teach you this topic right now, on demand.

Ask Shishya to teach this →

Need more? Ask Shishya

Shishya is your personal tutor for this topic. Pick a starter or open a free chat.

Open Shishya tutor →

Practice this topic

Take a full mock
  • Q1 · Environmental Issues (Class 12) · EASY

    Which of the following gases is primarily responsible for the greenhouse effect leading to global warming?

  • Q2 · Environmental Issues (Class 12) · MEDIUM

    Catalytic converters in automobiles reduce air pollution by converting harmful gases into less harmful substances. Which of the following conversions takes place in a catalytic converter?

  • Q3 · Environmental Issues (Class 12) · HARD

    The Montreal Protocol, signed in 1987, was an international agreement to phase out the production of certain chemicals that deplete the ozone layer. The protocol was particularly successful in reducing the atmospheric concentration of chlorofluorocarbons (CFCs). Which of the following best explains why CFCs are particularly harmful to the ozone layer?

Ask Shishya to explain these →