A Treat for Mosquitoes

16 solved questions from Class 5 EVS, each with the full working. Tap any question to see the step-by-step solution.

• 1 What is the fundamental scientific concept introduced in the chapter 'A Treat for Mosquitoes'? medium MCQ Key Concept & Definition
• 2 Which of the following is an important application or observation related to 'A Treat for Mosquitoes'? easy MCQ Practical Application
• 3 What primary question does the chapter 'A Treat for Mosquitoes' aim to answer? medium MCQ Core Scientific Inquiry
• 4 Why is the study of 'A Treat for Mosquitoes' essential for students in class-5? hard MCQ Importance & Significance
• 5 Which key practice is recommended while studying topics in 'A Treat for Mosquitoes'? medium MCQ Scientific Method
• 6 What is the primary topic or theoretical principle explored in 'A Treat for Mosquitoes' (Class 5 EVS)? medium MCQ Chapter Core Principle
• 7 Which key mechanism or analytical rule is highlighted in 'A Treat for Mosquitoes'? medium MCQ Key Analytical Mechanism
• 8 What is the first stage in the life cycle of a mosquito? easy 1 mark Mosquito life cycle basics
• 9 A stagnant water body of 150 litres is found in a village. Mosquitoes lay 15,000 eggs in it. If each larva consumes 2 millilitres of water before pupation, how much water remains after all larvae have emerged? hard 3 marks Mosquito larva water consumption
• 10 How many eggs can a female mosquito lay in a single day if it lays 200 eggs in 10 days? easy 1 mark Egg‑laying rate of mosquitoes
• 11 A village has 5 stagnant pools each holding 200 litres of water. A mosquito species lays eggs at a rate of 1 egg per litre per day. If every egg hatches into a larva that consumes 2 ml of water before pupation, how much water remains after all larvae have consumed it in 7 days? hard 4 marks Water consumption by mosquito larvae
• 12 Which of the following is NOT a way to prevent mosquito breeding? 1) Covering water containers 2) Keeping drains clean 3) Using mosquito coils 4) Removing standing water medium MCQ 2 marks Prevention of mosquito breeding
• 13 Explain three practical steps that students can take to reduce mosquito breeding in their neighbourhood. For each step, describe why it helps prevent mosquitoes from breeding. hard 4 marks Preventive measures against mosquito breeding
• 14 If a female mosquito can lay 360 eggs in 12 days, how many eggs does it lay on average in one day? easy MCQ 1 mark Rate of mosquito egg laying
• 15 In a village, there are 4 stagnant pools each with 300 litres of water. A mosquito species lays eggs at a rate of 0.8 egg per litre per day for 7 days. After hatching, each larva consumes 2 ml of water before becoming a pupa. If all eggs hatch and all larvae survive, how many litres of water will be left after 7 days? hard 3 marks Calculation of water loss due to mosquito larvae
• 16 A 100 litre pond contains stagnant water. A mosquito species lays 200 eggs per litre per day. If each egg hatches into a larva that consumes 1.5 ml of water before pupation, how much water remains after the larvae have eaten in 2 days? medium 2 marks Water consumption by mosquito larvae