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प्रश्न
Visit a library:
Find and read the biography of your favourite scientist.
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उत्तर
Jagdish Chandra Bose, Madame Curle, Louis Pasteur, Stephen Hawking, Alexander Graham Bell, Homi Bhabha, etc.
(Students have to write the biography on their own.)
संबंधित प्रश्न
'New Literature' is a misnomer for the wealth of the Indian Literary tradition. How does G. N. Devy explain this?
Identify the lines that reveal the critical tone of the poet towards the felling of the tree.
Name the world-famous personality who reached great heights despite of humble circumstances.
Find out from a vet or from a website, what precaution a vet has to take when he/she is called to treat wild, dangerous animals?
Make point-wise notes of the same.
Some words sound the same but their spelling and meaning are different. Such words are called homophones. There are many homophones.
Read the advertisement and answer the question given below.
What is the advertisement about?
Why do the leafcutter ants grow the fungus?
Miss Malliga teaches _______.
When does the world become green?
Read the following passage carefully and answer the following questions.
Pollution is the introduction of contaminants into the environment that cause harm to the ecosystem. The different kinds of pollution are air pollution, water pollution and land pollution. The release of various gases, finely divided solid particles, or liquid droplets that escape into the atmosphere to disperse and dilute in the environment is called air pollution. Modern society is also concerned about specific types of pollutants, such as noise pollution, light pollution, and plastic pollution.
Particulate Matter (PM), also known as particle pollution, is a complex mixture of extremely small particles and liquid droplets that get into the air. These particles if inhaled can affect health. The impact of PM 2.5 is particularly high in South Asia. Outdoor pollution is caused by a variety of pollutants like public and private vehicles, waste burning in the open, power production industries and construction and even cigarette smoking in public places.
Presently, air pollution is a major and growing risk factor for ill health in India. Delhi is one of the most air polluted cities in India. The air in the city as well as areas surrounding it has worsened to extremely hazardous levels in the recent years. This year’s pollution level is the worst in four years. Several studies have shown that poor air quality is a cause for many health issues among people with lower respiratory disorders with symptoms like dry cough, breathlessness, wheezing, chest discomfort, serious lung infections and cardio vascular diseases. Some studies throw light on the fact that about 16 per cent of the deaths worldwide in 2015 were due to pollution.
Air Masks are an option to protect oneself outdoor. Air masks can be used while commuting or while one is exposed to a polluted area. Some of these masks also include a layer of Activated carbon to filter the air. They protect us from suspended air particles and particulate matter up to the size of 2.5 microns and above. Their usage is limited to some days and should be disposed off after their prescribed duration of usage. The price for air masks starts from Rs 100 and can go up to Rs 500 and more.
We have to take active measures to control pollution and protect ourselves to lead a healthy and pollution free life.
- What is meant by pollution? Mention the different kinds of pollution.
- How does Particulate Matter cause air pollution?
- Identify three major causes of pollution in air
- Name the types of pollution we encounter now.
- What sort of health issues do people face due to air pollution?
- How can we protect ourselves outdoor from air pollution?
- Suggest a suitable title to the passage.
- Identify the meaning of the word similar to the one used in the fourth para:
- emerging
- filtering
- floating
- falling
