Skip to main content

Class 8 Science- Effects of air pollution and water pollution



Class 8 Science- Effects of air pollution and water pollution

Effects of Air Pollution
  • Global Warming– Increase in the amount of carbon dioxide and certain other gases in the atmosphere are responsible for a phenomenon called Global Warming.
  • Depletion of Ozone Layer -Everyone is well versed with Ozone Layer. It is a layer of the atmosphere which protects both plant and animal life on the earth by absorbing harmful ultraviolet radiation of the sun, which may cause skin cancer. Freon’s are responsible for the depletion of the ozone layer.
  • Effects on the plant: – Air pollution causes the long lasting and the harmful effects on the growth and development of plants. Few of them are listed as below:-
    • Photochemical smog forms a layer on leaves and along with dust blocks the sunlight from being absorbed by the leaf surface, this layer blocks the absorption of carbon dioxide by the leaves and also affects the functioning of stomata, thereby reducing the rate of photosynthesis.
    • Acid rain damages the plants and also causes the premature leaf fall.
  • Acid rain– When an air pollutant such as oxides of sulphur and nitrogen reacts with oxygen and water vapor of the atmosphere, they eventually form dilute solutions of sulphuric acid and nitric acid. Those acid mixes with rainwater and comes down usually in the form of acid rain. Acid forming gases and acid rain causes the below effect:-
    • Destruction of vegetarian due to acidification of soil.
    • Accelerated leaching of rocks and soils.
    • The decay of limestone, marble and other building materials.
    • Effect the human respiratory system.

Takshila Learning offers online/offline coaching for Class 1st to 12th covers all subjects so that they can easily score good marks in CBSE exams.
Labels:

Comments

Post a Comment

Thank you we will contact ASAP.

Popular posts from this blog

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material  Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne...
Post a Comment
Read more

Best Sample papers for Bank PO Exam Download

Sample papers for Bank PO Exam | Question Paper for Bank PO : Institute of banking Personnel Selection (IBPS) Department issued a Notification of IBPS PO 2017  exam announced in October month. IBPS Probationary Officer (PO) Online Application Form process will be begin from July 2017. This is a hard exam for all students so aware of its value. Large number of  candidates will participate in this exam. So all candidates should prepare well for it. Check out IBPS, Bank PO Sample papers, Question Paper Pattern, SBI  PO Syllabus ,   IBPS Syllabus  and other IBPS PO Preparation 2017 This paper is identical to any Bank PO Question Paper Pattern. Check whole IBPS Bank “PO question paper” subject wise. IBPS (PO) Paper Pattern Analysis with Syllabus and main topics of IBPS Exam 2017. PO Question Paper Pattern, Bank PO sample Papers for IBPS Bank Exam IBPS PO Exam will be conducted at three levels 1st- PO Preliminary Exam 2nd- PO Mains Exam 3rd- PO Common ...
Post a Comment
Read more

Online/Offline CBSE Coaching Classes for class 9

CBSE Coaching Class 9 :-   In a move to make the digital India and Skill India dream into a reality, we are providing the best courses to our students in e-learning mode. Our program consists of entire 9th class syllabus in a fun learning method with various ways like sounds and animations. Our content is in 2-D & 3-D animation for better understanding of students. So That students will be understand every thing clearly and it makes the learning easy and entertaining. We are offering the following subjects for class 9th Standard:   Maths Class Physics Class Chemistry Class Biology Class Our E-learning provides the best and trained teachers with highly qualified for the respective subjects, they help to improve the students’ performance and to teach the every concept clear and easy in better way. Our main motive is to help students to learn well and gain more marks with making  their basic concept strong and good knowledge base ...
Post a Comment
Read more