Pollution has harmful effects on the ecosystem. Noise pollution is caused by loud noises that may be caused by aircraft, cars, buses, and trucks, vehicle horns, loudspeakers, and industry noise, as well as high-intensity sonar effects.Ĩ. Water pollution is caused when industrial waste products are released into lakes, rivers, and other water bodies. The two chief causes of environmental pollution are deforestation and hazardous gaseous emissions.Ħ. The four different kinds of pollution include water pollution, soil pollution, air pollution and noise pollution.ĥ. Its depletion leads to these rays reaching us directly and harming us in various waĤ. Ozone layer defends us from the damaging ultraviolet rays of the sun. Water pollution destroys our marine life.ģ. Air pollution is also known to cause lung cancer, asthma, allergies, and various breathing problems along with severe and irreparable damage to flora and fauna. This causes discomfort to all living organisms on the planet. Pollution causes an imbalance of oxygen, nitrogen, carbon dioxide, argon and water vapour. Thus, pollution is caused by an imbalance of waste in our environment.Ģ. The introduction of harmful waste materials that are hazardous to life, the natural world and our activities, is what is termed as pollution. What is the most disturbing consequence of increasing pollution?ġ. Mention any two causes of noise pollution.Ĩ. What is the main cause of water pollution?ħ. What are the two chief causes of environmental pollution?Ħ. Mention four different kinds of pollution.ĥ. How does the reduction of the ozone layer affect us?Ĥ. How does pollution affect the environment?ģ. Answer the following questions very briefly. This problem is even more alarming as this has caused irreparable damage to the earth.Ī.1. The last decade has witnessed an alarming rise in environmental pollution. Light pollution is a great hindrance to astronomy as it has become increasingly difficult to view the night sky because of interference from artificial light.Ĥ. The excessive and inappropriate artificial light causes several phenomena that decrease visibility and cause visual discomforts like glare, urban sky glow2 and light trespass}. Light pollution includes use of excess lighting equipment. In short, this occurs when chemicals are released into the soil. Soil pollution is a result of acid rain, polluted water, fertilizers, etc. Noise pollution is caused by loud noises from aircraft, cars, buses and trucks, vehicle horns, loudspeakers and industry noise. This is destructive for the marine ecosystem. This is known to cause lung cancer, asthma, allergies, and various skin and breathing problems along with severe and irreparable damage to flora and fauna. Environmental pollution is caused by deforestation and hazardous gaseous emissions Air pollution is caused by the smoke emitted by cars, buses, trucks, trains and factories. The major types of environmental pollution are air pollution, water pollution, noise pollution, thermal pollution, soil pollution and light pollution.ģ. It depletes the ozone layer over the earth that defends us from the damaging ultraviolet rays of the sun. This imbalance of oxygen, nitrogen, carbon dioxide, argon and water vapour causes discomfort to all living organisms on the planet. It disturbs the balance of biosphere in which living beings survive.Ģ. The introduction of harmful waste materials that are hazardous to life, the natural world and our activities, is commonly known as pollution. Read the passage and answer the questions that follow.ġ. Unseen Passage for Class 7 CBSE With Answers PdfĪ. In this article, we’ll get you started with the basics of sentence structure, punctuation, parts of speech, and more. Basic English Grammar rules can be tricky.
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