Telangana SCERT Class 8 Biology Chapter 10 Solution – Not for Breathing Not for Drinking. Here in this post we provides Class 8 Biology Not for Breathing Not for Drinking Telangana State Board Solution. Telangana State Board English Class VIII Medium Students can download this Solution to Solve out Improve Your Learning Questions and Answers.
Telanagana State Board Class 8 Biology Chapter 10 Not for Breathing Not for Drinking Solution:
(1) How does air pollution lead to water pollution?
Ans: – Air pollution lead to water pollution. One of the main cause which is known as acid rain, pollution from factories and cars, industries etc. releases some dangerous gases like nitrogen oxide, sulphuric oxide which spread in the air. When rain coming, these gases mix with the rain water which results known as acid rains. Then this acidic rain water goes into the water besides and making then polluted.
Use of fertilizers and pesticides in agriculture pollutes not only air but also water.
Acid rain also damages building historical monuments plants and animals and in this way air pollution lead to water pollution.
(2) What steps can be taken up to control air pollution and water pollution.
Ans: – Air pollution cannot be totally eliminated. It can be controlled some of this process for controlling air pollution are –
(1) Tall chimneys should be installed in all factories to reduce air pollution at the ground level
(2) Better designed fuel burning equipment should be used in homes and industries so that fuel is burnt completely.
(2) Reduce vehicular emissions by using non polluting fuels like CNG.
(3) Improve the quality of fuel in automobiles and use catalytic converters in them.
(5) Plants and grow more and more trees in yout surroundings which reduces air pollution.
(6) All motor vehicles should be maintained properly so that they comply with pollution norms.
Prevention of water pollution:
(1) Toxic industrial wastes should be treated chemically to neutralize the harmful substances present in it before discharging into rivers and lakes.
(2) The sewage should not be dumped in to the rivers directly. It should first be treated at the sewage treatment.
(3) The use of excessive fertilizers and pesticides should be avoided.
(4) The use of synthetic detergent should be minimized or biodegradable detergents should be used.
(5) Dead bodies of human beings and animals should not be thrown in to rivers.
(6) The excreta and other garbage should be treated in a biogas plant to get fuel as well as manure.
(7) There should be general awareness among the masses regardings the harmful effects of water pollution and the way of prevention. Waste paper, plastics, waste food and vegetables should not be thrown in to open drains.
(7) Trees and shrubs should be planted along the banks of the rivers.
(3) Why does the increased level of nutrients in the water affect the survival of aquatic organisms?
Ans: – Phosphates and nitrates – chemical fertilizers from agriculture run-off due to rain and industrial waste enter into water through sewage and pollute the water. It helps algae to bloom, weeds to grow and bacteria to spread. As a result water turns green and cloudy and smell bad. Decomposing plants use up the oxygen in water, disrupting aquatic life. Thus this enrichment of water by nutrients leading to excessive plant growth and depletion of oxygen is known as ‘Euthrophication’. This effects aquatic life badly.
(4) Road side plants cannot grow properly. Find you own reasons and explain with your argument.
Ans: – Roadside plant does not get proper water. There is no sufficient amount of water presents in the soil for the growth of plants.
Huge amount of dust and dirt, their leaves get dirty and which prevent them to get proper sunlight. So basic elements of photosynthesis may not get.
They are also come under the vehicles so they get died.
Sometimes animal eat them or sometimes road renovation authorities cut them.
For all these reason road side plants cannot grow properly.
(5) Sudheer is a traffic constable, what do you think about his health. Give some suggestions to protect his health during duty period?
Ans: – Some suggestions to protect his health during duty period –
(i) Cover the nose with a mask that protection against pollution can take.
(ii) Protection for eyes in a hot sunny day must wearing sunglasses.
(iii) Drink water with adding small amount of salt and sugar frequently to avoid dehydration
(iv) He may use sunscreen ointments if required
(v) He should have follow proper balanced diet food.
(6) Write a short note on the effects of water pollution in your village. Suggest precautions?
Ans: – Now a day’s water pollution is taking place at a high level. The pure water turning into dirty impure sewage infect my in my village also a river flow, this is turned into a dirty water sewage type river by washing cloth, leaving dirty sewage water direct connect to the river. It is effecting villagers health’s and also the crops. The water is also polluting because of excessive use of the chemical fertilizers used by the villagers.
(1) Industries must refine the water/wastes before the dispose in to the rivers.
(2) Use of excessive chemicals fertilizers must be prohibited
(3) Prevent river water to get polluted.
(9) What is air pollution? Make a flowchart to describe its causes and effects.
Ans: – The composition of air in the atmosphere comprises four major gases namely nitrogen, oxygen, argon and carbon dioxide. Other substances are present in a very little amount. All the components have their own balance state. When this balanced state is disturbed either by some natural phenomena either by some natural phenomena or by human activities, then it is called “Air pollution”.
Describe the Flowchart of air pollutions cause: Burning of fuels -> Vehicles -> Industries -> Thermal power plants -> Nuclear power plants -> Fertilizers and pesticides -> Deforestation -> CFC’s -> Mining.
Effects: Respiratory and heart problems -> Global warming -> Acid rain -> Eutrophication -> Depletion of Ozone Layer.
(10) Clear and transparent water is always suitable for drinking. Comments
Ans: – You cannot be 100% sure that every clear water is safe for drinking. The water that 100ks clean might contain harmful micro organisms or dissolved impurities. If you drink it, you would definitely fall sick.
So it is advised that purify the water before drinking. You can boiled the water, boiling water is free from any micro organisms and it is safe for health or you can follow the water purifying systems. You can get a purifier and filter that clean water to make it free from micro – organisms and then drink it.
(11) If our monuments like Taj Mahal is effected by air pollution, what is you advice to protect it?
Ans: – some steps to save the Taj Mahal these are –
(i) Switch over to cleaner fuels like CNG and LPG
(2) Use unleaded petrol in vicinity of Taj Mahal
(3) Allow only battery run busses
(4) Instead of using car they may prefer bicycles.
(5) Proper maintenance of garbage.
(6) Try to shift industries to outside of Agra city.
(12) Reshma going to talk about controlling measures of soil pollution. Prepare a write up for her.
Ans: – Soil erosion can be easily controlled by using wide range of farm practices. Usage of natural fertilizers, bio-pesticides must be used as the alternative to the chemical pesticides.
Organic fertilizers may used instead of synthetic fertilizers. Products such as plastics, glass and paper must be recycled and reused.
Solid wastes should be properly collected and disposed by proper method.
Use cattle dung and agricultural washes in biogas.
(14) ‘Use Bicycle’ – Avoid motor bikes and cars. This slogan is prepared by sravani. Prepare some more slogans on pollution.
Ans: – Slogans on pollution –
(1) Stop pollution before it stop our breath
(2) Love humanity, hate pollution
(3) Keep the environment clean, it can help the world
(4) You must kill POLLUTIONS, or it kills you
(5) Say loudly ‘No to pollution’.
(15) If you are a general manager of a chemical industry what precautions would you take to control air and water pollution?
Ans: – I will be that –
Discharge water, after treating it well. I will treat solid washes separately. Never dump waste water into the river directly. I will strictly ensure that no toxic materials discharge in the atmosphere. It should not harmful to environment.
(16) How to minimize the usage of paper in daily life?
Ans: – There are many ways we can reduce paper usage such as –
(1) By recycling the paper and use the paper in limited by don’t using it.
(2) We can reduce use of paper by using both sides of paper.
(3) Replace paper plates can be reused unlike paper plates.
(4) Save paper while printing and copying
(5) To use cloth bags instead of paper.