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Recent questions tagged ch16
Questions
Questions from:
How has DDT caused decline in bird population?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is the main idea behind “Joint Forest Management Concept” introduced by the Government of I
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
How can slash and burn agriculture become environment friendly?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Why has National forest commission of India recommended a relatively larger forest cover for hills t
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues<br>
asked
Jul 12, 2017
by
pady_1
1
answer
What is hybrid vehicle technology? Explain its advantages with a suitable example.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What are the three major kinds of impurities in domestic waste water?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-c
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What do you understand by Snow-blindness?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
It is a common practice to plant trees and shrubs near the boundary walls of the buildings. What pur
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Name one green house gas and its possible source of production on a large scale. What are the harmfu
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Is it true that if the dissolved oxygen level drops to zero, the water will become septic. Give an e
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Is it true that carpets and curtain/drapes placed on the floor or wall surface can reduce the noise
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is cultural eutrophication?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-b
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is the best solution for the treatment of electronic wastes?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is reforestation?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What do you understand by biomagnification?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is an algal bloom?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Name an industry which can cause both air and thermal pollution and as well as eutrophication.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Mention any two examples of plants used as wind breakers in the agricultural fields.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Blends of polyblend and bitumen, when used, help to increase road life by a factor of three. What is
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is the raw material for polyblend?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
It is a common practice to undertake desilting of the overhead water tanks. What is the possible sou
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Name the city in our country where the entire public road transport runs on CNG.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
In which year was the Air (prevention and control of pollution) Act amended to include noise as air
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is organic farming? Discuss the benefits of organic farming as a viable practice in the context
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-e
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
How does an electrostatic precipitator work?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-e
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Use of lead free petrol or diesel is recommended to reduce the pollution emitted by automobiles. Wha
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Match the following :
cbse
math
class11
ch16
probability
exemplar
q43
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Match the proposed probability under Column $C_1$ with the appropriate written description under column $C_2$ :
cbse
math
class11
ch16
probability
exemplar
q42
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
The probability of happening of an event A is 0.5 and that of B is 0.3. If A and B are mutually exclusive events, then the probability of neither A nor B is ________.
cbse
math
class11
ch16
probability
exemplar
q41
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If A and B are two events associated with a random experiment such that $P(A)=0.3,P(B)=0.2$ and $P(A \cap B)=0.1$ then the value of $P(A \cap \bar{B})$ is _________
cbse
math
class11
ch16
probability
exemplar
q40
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Let S={1,2,3,4,5,6} and E={1,3,5},then $\bar{E}$ is_________.
cbse
math
class11
ch16
probability
exemplar
q39
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If $e_1,e_2,e_3,e_4$ are the four elementary outcomes in a sample space and $P(e_1) = .1, P(e_2) = .5, P (e_3) = .1$, then the probability of $e_4$ is ______.
cbse
math
class11
ch16
probability
exemplar
q38
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
The probability that the home team will win an upcoming football game is 0.77, the probability that it will tie the game is 0.08, and the probability that it will lose the game is _____________
cbse
math
class11
ch16
probability
exemplar
q37
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The sum of probabilities of two students getting distinction in their final examinations is 1.2
cbse
math
class11
ch16
probability
exemplar
q36
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The probability of an occurrence of event A is 0.7 and that of the occurrence of event B is 0.3 and the probability of occurrence of both is 0.4.
cbse
math
class11
ch16
probability
exemplar
q35
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The probability of intersections of two events A and B is always less than or equal to those favorable to the event A.
cbse
math
class11
ch16
probability
bookproblem
exemplar
q34
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : If A and B are two candidates seeking admission in an engineering college.The probability that A is selected is 0.5 and the probability that both A and B are selected is at most 0.3.Is it possible that the probability of B getting selected is 0.7?
cbse
math
class11
ch16
probability
exemplar
q33
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The probabilities that a typist will make 0,1,2,3,4,5 or more mistakes in typing a report are,respectively,0.12,0.25,0.36,0.14,0.08,0.11
cbse
math
class11
ch16
probability
exemplar
q32
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The probability that a student will pass his examination is 0.73,the probability of the student getting a compartment is 0.13,and the probability that the student will either pass or get compartment is 0.96.
cbse
math
class11
ch16
probability
exemplar
q31
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
True-or-False : The probability that a person visiting a zoo will see the giraffee is 0.72,the probability that he will see the bears is 0.84 and the probability that he will see both is 0.52.
cbse
math
class11
ch16
probability
exemplar
q30
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If M and N are any two events,the probability that at least one of them occurs is
cbse
math
class11
ch16
probability
exemplar
q29
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
The probability that at least one of the events A and B occurs is 0.6.If A and B occur simultaneously with probability 0.2.Then $P(\bar{A})+P(\bar{B})$ is
cbse
math
class11
ch16
probability
exemplar
q28
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3.Then the probability that either A or B fails is
cbse
math
class11
ch16
probability
exemplar
q27
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
A single letter is selected at random from the word PROBABILITY .The probability that it is a vowel is
cbse
math
class11
ch16
probability
exemplar
q26
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
6 boys and 6 girls sit in a row at random.The probability that all the girls sit together is
cbse
math
class11
ch16
probability
exemplar
q25
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If $A\cup B)=P(A \cap B)$ for any two events A and B,then
cbse
math
class11
ch16
probability
exemplar
q24
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If A and B are mutually exclusive events,then
cbse
math
class11
ch16
probability
exemplar
q23
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Without repetition of the numbers,four digit numbers are formed with the numbers 0,2,3,5.The probability of such a number divisible by 5 is
cbse
math
class11
ch16
probability
exemplar
q22
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Seven persons are to be seated in a row.The probability that two particular persons sit next to each other is
cbse
math
class11
ch16
probability
exemplar
q21
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
While shuffling a pack of 52 playing cards,2 are accidently dropped.Find the probability that the missing cards to be of different colours.
cbse
math
class11
ch16
probability
exemplar
q20
sec-b
medium
asked
Jul 8, 2014
by
sreemathi.v
1
answer
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