CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 13 - मानवीय करुणा की दिव्या चमक
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 13 – मानवीय करुणा की दिव्या चमक
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 12 - लखनवी अंदाज़
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 12 – लखनवी अंदाज़
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 11 - बालगोबिन à¤à¤—त
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 11 – बालगोबिन à¤à¤—त
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 10 - नेताजी का चश्मा
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 10 – नेताजी का चश्मा
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 9 - संगतकार
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 9 – संगतकार
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 8 - कन्यादान
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 8 – कन्यादान
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 7 - छाया मत छूना
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 7 – छाया मत छूना
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 6 - यह दंतुरहित मुस्कान और फसल
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 6 – यह दंतुरहित मुस्कान और फसल
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 5 - उत्साह और अट नहीं रही
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 5 – उत्साह और अट नहीं रही
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 4 - आत्मकथ्य
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 4 – आत्मकथ्य
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 3 - सवैया और कवित्त
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 3 – सवैया और कवित्त
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 2 - राम-लक्ष्मण-परशुराम संवाद
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 2 – राम-लक्ष्मण-परशुराम संवाद
CBSE Class 10 Hindi - Kshitij - MCQ and Online Tests - Unit 1 - सूरदास के पद
CBSE Class 10 Hindi – Kshitij – MCQ and Online Tests – Unit 1 – सूरदास के पद
CBSE Class 12 French - MCQ and Online Tests - Unit 15
CBSE Class 12 French – MCQ and Online Tests – Unit 15
CBSE Class 12 French - MCQ and Online Tests - Unit 14
CBSE Class 12 French – MCQ and Online Tests – Unit 14
CBSE Class 12 French - MCQ and Online Tests - Unit 12
CBSE Class 12 French – MCQ and Online Tests – Unit 12
CBSE Class 12 French - MCQ and Online Tests - Unit 13
CBSE Class 12 French – MCQ and Online Tests – Unit 13
CBSE Class 12 French - MCQ and Online Tests - Unit 11
CBSE Class 12 French – MCQ and Online Tests – Unit 11
CBSE Class 12 French - MCQ and Online Tests - Unit 10
CBSE Class 12 French – MCQ and Online Tests – Unit 10
Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 12 French – MCQ and Online Tests – Unit 10
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CBSE Class 12 French - MCQ and Online Tests - Unit 7
CBSE Class 12 French – MCQ and Online Tests – Unit 7
CBSE Class 12 French - MCQ and Online Tests - Unit 8
CBSE Class 12 French – MCQ and Online Tests – Unit 8
CBSE Class 12 French - MCQ and Online Tests - Unit 9
CBSE Class 12 French – MCQ and Online Tests – Unit 9
CBSE Class 12 French - MCQ and Online Tests - Unit 6
CBSE Class 12 French – MCQ and Online Tests – Unit 6
CBSE Class 12 French - MCQ and Online Tests - Unit 3
CBSE Class 12 French – MCQ and Online Tests – Unit 3
CBSE Class 12 French - MCQ and Online Tests - Unit 4
CBSE Class 12 French – MCQ and Online Tests – Unit 4
CBSE Class 12 French - MCQ and Online Tests - Unit 5
CBSE Class 12 French – MCQ and Online Tests – Unit 5
CBSE Class 12 French - MCQ and Online Tests - Unit 2
CBSE Class 12 French – MCQ and Online Tests – Unit 2
CBSE Class 12 French - MCQ and Online Tests - Unit 1
CBSE Class 12 French – MCQ and Online Tests – Unit 1
CBSE Class 12 Biology - MCQ and Online Tests - Unit 16 - Environmental Issues
CBSE Class 12 Biology – MCQ and Online Tests – Unit 16 – Environmental Issues
Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 12 Biology – MCQ and Online Tests – Unit 16 – Environmental Issues
Question 1.
Acid Rain comes under which type of pollution?
(a) Water pollution
(b) Air pollution
(c) Soil pollution
(d) Sound Pollution
Answer
Answer: (c) Soil pollution
Question 2.
Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with:
(a) DDT
(b) Ammonia
(c) CO2
(d) Water
Answer
Answer: (c) CO2
Question 3.
Which chemical substance affects the Ozone Layer?
(a) Chlorofluorocarbon
(b) Chlorine
(c) Hexafluorocarbon
(d) Molecular Carbon
Answer
Answer: (a) Chlorofluorocarbon
Question 4.
Chlorofluoro carbon are responsible for:
(a) Acid rain
(b) Ozone layer depletion
(c) Global warming
(d) Thermal inversion
Answer
Answer: (d) Thermal inversion
Question 5.
Fluoride pollution mainly affect:
(a) Teeth
(b) Kidney
(c) Brain
(d) Heart
Answer
Answer: (a) Teeth
Question 6.
Environment (Protection) Act came into force in?
(a) 1986
(b) 1989
(c) 1992
(d) 1993
Answer
Answer: (c) 1992
Question 7.
In Ozone Degradation which element acts as catalyst?
(a) Chlorine
(b) Flurine
(c) Oxygen
(d) Potassium
Answer
Answer: (a) Chlorine
Question 8.
Nutrient enrichment of water bodies causes:
(a) Stratification
(b) Eutrophication
(c) Succession
(d) None of these
Answer
Answer: (b) Eutrophication
Question 9.
Ozone Layer is found in :
(a) Stratosphere
(b) Lithosphere
(c) Troposphere
(d) Hemisphere
Answer
Answer: (a) Stratosphere
Question 10.
Pollutant which causes acid rain is:
(a) SO2
(b) CO2
(c) CO
(d) Hydrocarbon
Answer
Answer: (a) SO2
Question 11.
Increased skin cancer and high mutation rate are due to:
(a) Acid Rain
(b) Ozone Depletion
(c) CO2 Pollution
(d) CO Pollution
Answer
Answer: (b) Ozone Depletion
Question 12.
Which one of the following is not a greenhouse gas?
(a) Methane
(b) CO2
(c) Chlorofluoro carbon
(d) Hydrogen
Answer
Answer: (d) Hydrogen
Question 13.
Minimata disease is caused by:
(a) ByChromium
(b) By Cadmium
(c) By Methyl mercury
(d) By Radioactive elements
Answer
Answer: (c) By Methyl mercury
Question 14.
Permissible noise levels in a residential area at night time is:
(a) 35 dB
(b) 40 dB
(c) 45 dB
(d) 50 dB
Answer
Answer: (c) 45 dB
Question 15.
A mutagenic pollutant is:
(a) Organophosphate
(b) Resines
(c) Hydrocarbons
(d) Nitrogen oxides
Answer
Answer: (c) Hydrocarbons
Question 16.
Natural air pollutant are:
(a) Pollen Grains
(b) Gases of Volcanic Eruption
(c) Aerosol
(d) Fluorides
Answer
Answer: (b) Gases of Volcanic Eruption
Question 17.
Rain is called acid rain, its pH is below:
(a) 7
(b) 6.5
(c) 6
(d) 5.6
Answer
Answer: (d) 5.6
Question 18.
Bluebaby syndrome results from:
(a) Excess of TDS
(b) Excess of DO
(c) Excess of chloride
(d) Methaemoglobin
Answer
Answer: (d) Methaemoglobin
Question 19.
Common indicator organism of water pollution is:
(a) Lemna pancicostata
(b) Eichhomia crassipes
(c) Escherichia coli
(d) Entamoeba histolytica
Answer
Answer: (c) Escherichia coli
Question 20.
Pollution of SO2 destroys:
(a) Lichen
(b) Fungi
(c) Algae
(d) Fish
Answer
Answer: (a) Lichen
CBSE Class 12 Biology - MCQ and Online Tests - Unit 15 - Biodiversity and Conservation
CBSE Class 12 Biology – MCQ and Online Tests – Unit 15 – Biodiversity and Conservation
Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 12 Biology – MCQ and Online Tests – Unit 15 – Biodiversity and Conservation
Question 1.
Which type of living organisms given below are listed in Red Data Book”?
(a) Rare species
(b) Rare and endangered species
(c) Endangered species
(d) None of these
Answer
Answer: (b) Rare and endangered species
Question 2.
Reserve biosphere of Sundarban is situated in which of the following states :
(a) Bihar
(b) Uttar Pradesh
(c) Assam
(d) West Bengal
Answer
Answer: (d) West Bengal
Question 3.
Bandipurin Karnataka is the site of project:
(a) Elephant
(b) Hangul
(c) Tiger
(d) Peacock
Answer
Answer: (c) Tiger
Question 4.
Biodiversity Act of India was passed by the Parliament in the year:
(a) 1996
(b) 1992
(c) 2002
(d) 2000
Answer
Answer: (c) 2002
Question 5.
Red Data Book is produced by:
(a) IUCN
(b) WWF
(c) IBWL
(d) None of these
Answer
Answer: (a) IUCN
Question 6.
Lion-tailed Macaque is found in:
(a) Western Ghats
(b) Caucasus
(c) Eastern Ghats
(d) Western Himalaya
Answer
Answer: (a) Western Ghats
Question 7.
Kanha National Park is famous for:
(a) Birds
(b) Rhinoceros
(c) Tigers
(d) Crocodiles
Answer
Answer: (c) Tigers
Question 8.
Project tiger in India was started in the year:
(a) 1973
(b) 1981
(c) 1985
(d) 1986
Answer
Answer: (a) 1973
Question 9.
Lions m India are now found in :
(a) Jim Corbett National Park
(b) Forests of Madhya Pradesh
(c) Forests of Western Ghats
(d) Fir Forests
Answer
Answer: (d) Fir Forests
Question 10.
Dudhwa National Part is located in:
(a) In Himachal Pradesh
(b) In Uttar Pradesh
(c) In Madhya Pradesh
(d) Arunachal Pradesh
Answer
Answer: (b) In Uttar Pradesh
