Short & Long Questions: Pollution and Conservation of the Environment | Be an Explorer 5: Book Solutions, Notes & Worksheets - Class 5 PDF Download

Short Answer Questions.

Q1: What is pollution?
Ans: Pollution is the addition of harmful substances into the environment, which can alter and harm the living and non-living things.

Q2: Name the four main types of pollution.
Ans: The four main types of pollution are water pollution, air pollution, land pollution, and noise pollution.

Q3: How does water pollution occur?
Ans: Water pollution occurs when harmful substances enter water bodies like rivers, lakes, oceans, and groundwater, often through activities like bathing, washing, or oil spills.

Q4: What are the major ill effects of water pollution?
Ans: Water pollution can lead to diseases like typhoid and dysentery, harm marine animals, and make water unfit for cooking and drinking.

Q5: What is air pollution, and what are its effects on health?
Ans: Air pollution is the contamination of the air with harmful gases, smoke, and dust. It can cause respiratory issues, asthma, bronchitis, eye irritation, and damage to the lungs.

Q6: List two sources of land pollution.
Ans: Land pollution can be caused by the excessive use of chemicals, pesticides, and fertilizers in farming and improper disposal of garbage in dumps.

Q7: What is noise pollution, and how is it caused?
Ans: Noise pollution occurs when sounds become loud and irritating. It is caused by factors like loud music, vehicle horns, airplanes, and industrial activities.

Q8: What is the purpose of waste management?
Ans: Waste management involves the collection, transportation, treatment, and disposal of waste materials to prevent health problems and environmental pollution.

Q9: Differentiate between biodegradable and non-biodegradable wastes.
Ans: Biodegradable wastes can be decomposed by microorganisms, while non-biodegradable wastes do not easily dissolve and remain in the environment for a long time.

Q10: Name three Rs for the conservation of the environment.
Ans: The three Rs for conservation are Reduce, Recycle, and Reuse.

Long Answer Questions.

Q1: Explain the effects of water pollution on human health.
Ans: Water pollution can lead to diseases like typhoid and dysentery. Contaminated water is harmful for consumption and cooking, posing a severe risk to human health.

Q2: Describe the sources and effects of air pollution.
Ans: Air pollution comes from various sources, including industrial emissions, vehicle exhaust, and natural events like forest fires. It can cause respiratory issues, eye irritation, and contribute to global warming.

Q3: Discuss the causes and consequences of land pollution.
Ans: Land pollution is caused by chemicals, pesticides, and improper garbage disposal. It harms ecosystems, affects crop growth, and can lead to health problems for humans.

Q4: Examine the impact of noise pollution on human well-being.
Ans: Noise pollution, from sources like loudspeakers and industrial activities, can result in sleeplessness, stress, and hearing damage. It particularly affects the well-being of older individuals.

Q5: Explain the concept of waste management and its significance.
Ans: Waste management involves proper disposal of waste to prevent health issues and environmental pollution. It is crucial in handling the large variety of wastes generated from daily activities.

Q6: Differentiate between biodegradable and non-biodegradable wastes. Provide examples of each.
Ans: Biodegradable wastes can be decomposed by microorganisms, e.g., fruit peels. Non-biodegradable wastes do not dissolve easily, e.g., plastic bags and metals.

Q7: Discuss the three Rs for the conservation of the environment.
Ans: The three Rs are Reduce (acquire only what is necessary), Recycle (process waste materials), and Reuse (use items in different ways). These practices help in conserving the environment.

Q8: Describe the harmful effects of industrial wastes on the environment.
Ans: Industrial wastes, including chemicals and toxic effluents, can contaminate water and soil, leading to pollution. They harm ecosystems and pose risks to human health.

Q9: Explain the methods of waste disposal, focusing on landfill and incineration.
Ans: Landfill involves dumping waste in ditches covered with soil, while incineration burns waste at high temperatures. Both methods have environmental drawbacks and health concerns.

Q10: How can individuals contribute to the conservation of the environment in their daily lives?
Ans: Individuals can contribute by planting more trees, avoiding deforestation, practicing rainwater harvesting, using eco-friendly fuels, and reducing electricity consumption. These actions promote a sustainable and environment-friendly lifestyle.