Environmental Issues NEET PYQs (1989–2026)

Solved Environmental Issues PYQs

3 recent questions with answers. The full set of 142 is free to practise.

1. NEET 2026EasyAir Pollution and Its Control
   Q1

   "The Evil Quartet" of biodiversity loss includes which of the following?

   • AOver-exploitation; Alien species invasions; Air pollution; Co-extinctions
   • BHabitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions
   • CHabitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions
   • DOver-exploitation; Alien species invasions; Soil pollution; Co-extinctions

   Show answer & solution

   Correct answer: (C)

   The Evil Quartet: habitat loss, over-exploitation, alien species invasions, co-extinctions.
2. NEET 2023EasyWater Pollution and Its Control
   Q2

   Nitrates and phosphates flowing from agricultural farms into water bodies are a significant cause of :
   
   [NEET 2023 mpr]

   • AEutrophication
   • BHumification
   • CMineralisation
   • DStratification

   Show answer & solution

   Correct answer: (A)

   Eutrophication is a process where water bodies receive excess nutrients that stimulate excessive plant growth (algae, phytoplankton, and nuisance plants weeds). This enhanced plant growth, often called an algal bloom, reduces dissolved oxygen in the water when dead plant material decomposes and can cause other organisms to die. Nitrates and phosphates are two essential nutrients that can cause eutrophication when they are present in large amounts.
3. NEET 2019MediumSolid and Radioactive Wastes
   Q3

   Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for
   
   [NEET 2019]

   • AUse as a fertilizer
   • BConstruction of roads
   • CMaking tubes and pipes
   • DMaking plastic sacks

   Show answer & solution

   Correct answer: (B)

   Polyblend is a fine powder of recycled modified plastic waste. The mixture is mixed with bitumen that is used to lay roads

Topic-wise question count

Where NEET has asked from Environmental Issues, most frequent first.

• Air Pollution and Its Control78
• Water Pollution and Its Control45
• Resource Degradation and Deforestation14
• Solid and Radioactive Wastes5

Year-wise Environmental Issues questions in NEET

Number of questions from this chapter in each year's paper(s).