-
question_answer1)
What is the main source of water for inland lakes?
A)
Snow done
clear
B)
Sea water done
clear
C)
Ground water done
clear
D)
Springs done
clear
View Solution play_arrow
-
question_answer2)
Identify the source of ground water.
A)
Sub-soil water done
clear
B)
River water done
clear
C)
Rainwater done
clear
D)
All of the above done
clear
View Solution play_arrow
-
question_answer3)
Which of the following are changed when water boils?
(i) Temperature |
(ii) State |
(iii) Colour |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
View Solution play_arrow
-
question_answer4)
Clouds are formed due to
A)
only evaporation. done
clear
B)
only condensation. done
clear
C)
both evaporation and condensation. done
clear
D)
only vaporization. done
clear
View Solution play_arrow
-
question_answer5)
Mrs. Uma has put a wet cloth to dry as shown below.
Which part of the towel will dry faster?
A)
X done
clear
B)
Y done
clear
C)
Z done
clear
D)
Either X or Y done
clear
View Solution play_arrow
-
question_answer6)
In a small town, the number of water pumps, concrete houses and roads increased. What happens to the water table of that place?
A)
It becomes lower done
clear
B)
It becomes higher done
clear
C)
It remains unaffected done
clear
D)
It first becomes lower and then higher. done
clear
View Solution play_arrow
-
question_answer7)
Cloud seeding is a technique that induces rain. What does the process involve?
A)
Adopting an agricultural practice that depends on clouds done
clear
B)
Introducing particles in clouds to facilitate condensation done
clear
C)
Making clouds and placing them in the sky done
clear
D)
Scattering clouds to form seed like structures done
clear
View Solution play_arrow
-
question_answer8)
Given in the figure are four containers that contain the same amount of water.
In which of the following containers will water evaporate the slowest?
A)
Q done
clear
B)
R done
clear
C)
P done
clear
D)
S done
clear
View Solution play_arrow
-
question_answer9)
Which of the following is the primary source of water on land?
A)
Lakes done
clear
B)
Tanks done
clear
C)
Ponds done
clear
D)
Rain water done
clear
View Solution play_arrow
-
question_answer10)
Which of the following is potable water?
A)
A glass of water fit for drinking done
clear
B)
Water in a pot done
clear
C)
Sea water done
clear
D)
Water with bacteria and chemicals done
clear
View Solution play_arrow
-
question_answer11)
In early winter mornings, we can see drops of water on the grass. This is because of
A)
photosynthesis. done
clear
B)
transpiration. done
clear
C)
condensation. done
clear
D)
water cycle. done
clear
View Solution play_arrow
-
question_answer12)
Why is water useful to life on the earth?
(i) It maintains ecological balance. |
(ii) It sustains life. |
(iii) It is necessary for respiration in aquatic organisms. |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
View Solution play_arrow
-
question_answer13)
Which of the following statements is true?
A)
The salinity of sea increases tremendously in a short time. done
clear
B)
The salinity of rivers decreases with time. done
clear
C)
The salinity of seas increases with time. done
clear
D)
The salinity of seas remains constant with time. done
clear
View Solution play_arrow
-
question_answer14)
Rain water harvesting is a method employed to
A)
stop soil erosion in a place. done
clear
B)
raise the water table of a place. done
clear
C)
decrease drought at a place. done
clear
D)
decrease floods at a place. done
clear
View Solution play_arrow
-
question_answer15)
Ground water gets recharged by the Mr process of
A)
aquification. done
clear
B)
transpiration. done
clear
C)
infiltration. done
clear
D)
transportation. done
clear
View Solution play_arrow
-
question_answer16)
A Observe the figure given below and identify the process.
A)
Water cycle done
clear
B)
Torrential rain causing floods done
clear
C)
Soil erosion done
clear
D)
Rain water harvesting done
clear
View Solution play_arrow
-
question_answer17)
Why do you feel cool after you start sweating?
A)
Evaporation of water droplets done
clear
B)
Condensation of water droplets done
clear
C)
Freezing of water droplets done
clear
D)
Solidification of salts in the water droplets done
clear
View Solution play_arrow
-
question_answer18)
What causes the formation of salt from sea water?
A)
Evaporation done
clear
B)
Condensation done
clear
C)
Transpiration done
clear
D)
Transformation done
clear
View Solution play_arrow
-
question_answer19)
Why does the water table of a place become lower?
A)
When trees are planted done
clear
B)
When there is a drought done
clear
C)
When there is a cyclone and flood done
clear
D)
All of the above done
clear
View Solution play_arrow
-
question_answer20)
Why is water scarcity increasing day by day?
A)
Water cycle has stopped functioning. done
clear
B)
The total amount of water on earth has decreased. done
clear
C)
The consumption of water has increased. done
clear
D)
There is an increasing frequency of floods. done
clear
View Solution play_arrow
-
question_answer21)
Which of the following is polluted by man or factories?
A)
Ponds done
clear
B)
Rivers done
clear
C)
Ground water done
clear
D)
All of the above done
clear
View Solution play_arrow
-
question_answer22)
Which of the following will be an advantage of inter-linking rivers in India?
A)
Lot of people will gain employment. done
clear
B)
Floods will take place uniformly throughout the country. done
clear
C)
Water will be distributed uniformly. done
clear
D)
India will become a technically advanced country. done
clear
View Solution play_arrow
-
question_answer23)
X is a process by which plants lose water. What is X?
A)
Evaporation done
clear
B)
Transpiration done
clear
C)
Condensation done
clear
D)
Translocation done
clear
View Solution play_arrow
-
question_answer24)
Observe the given figure.
Which of the following processes is responsible for the formation of water droplets outside the glass?
A)
Evaporation done
clear
B)
Cooling done
clear
C)
Condensation done
clear
D)
Transpiration done
clear
View Solution play_arrow
-
question_answer25)
Which of the following statements is incorrect?
A)
Water evaporates from plants, animals and oceans. done
clear
B)
Animals living in water are not harmed during the floods. done
clear
C)
Vegetation cannot thrive during droughts. done
clear
D)
Water available for human use is very limited during floods. done
clear
View Solution play_arrow
-
question_answer26)
What is rain water harvesting?
A)
Storing ground water present in wells. done
clear
B)
Stopping the cultivation of crops to save water done
clear
C)
The seeping of water into the ground done
clear
D)
Collecting rainwater and storing it for future use done
clear
View Solution play_arrow
-
question_answer27)
For which of the following purposes is saline water NOT used?
(i) For washing clothes |
(ii) For drinking |
(iii) For agriculture |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
View Solution play_arrow
-
question_answer28)
Temporary hardness of water is due to the presence of
A)
calcium bicarbonate. done
clear
B)
sodium carbonate. done
clear
C)
potassium carbonate. done
clear
D)
magnesium hydride. done
clear
View Solution play_arrow
-
question_answer29)
Water scarcity is a problem in our country. What are the ways by which we can conserve water?
(i) Rain water harvesting |
(ii) Drip irrigation |
(iii) Deforestation |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
View Solution play_arrow
-
question_answer30)
A cloud is unable to hold droplets of water because
A)
they become heavier. done
clear
B)
they become lighter. done
clear
C)
they undergo condensation slowly. done
clear
D)
they undergo sublimation. done
clear
View Solution play_arrow
-
question_answer31)
A girl saw a water puddle while going to school. In the evening, while returning home, she observed that the puddle disappeared. This was because
A)
the water evaporated. done
clear
B)
the water seeped into the ground. done
clear
C)
the water condensed. done
clear
D)
Both (a) and (b) done
clear
View Solution play_arrow
-
question_answer32)
Observe the figure given below and identify the process.
A)
Water cycle done
clear
B)
Water purification done
clear
C)
Water condensation done
clear
D)
Rain water harvesting done
clear
View Solution play_arrow
-
question_answer33)
Which of these occurs due to condensation?
A)
The drying of wet clothes. done
clear
B)
Water drops appearing on the outer side of a cool water bottle. done
clear
C)
Steam rising from wet clothes when they are ironed. done
clear
D)
Black board gets dried after it is wiped with wet cloth. done
clear
View Solution play_arrow
-
question_answer34)
Aquatic animals and plants
A)
have special organs that store oxygen. done
clear
B)
have to come out of water to breathe. done
clear
C)
use the oxygen dissolved in water for respiration. done
clear
D)
use oxygen present in the air. done
clear
View Solution play_arrow
-
question_answer35)
Human body contains water up to
A)
90%. done
clear
B)
50%. done
clear
C)
70%. done
clear
D)
80%. done
clear
View Solution play_arrow
-
question_answer36)
Which of the following substances contain water?
(i) Milk |
(ii) Blood |
(iii) Oil |
(iv) Fruits |
A)
Only (i), (ii) and (iv) done
clear
B)
Only (i),(ii) and (iii) done
clear
C)
Only (ii), (iii) and (iv) done
clear
D)
Only (i), (iii) and (iv) done
clear
View Solution play_arrow
-
question_answer37)
Which of the following combines with water vapour or rain water to form acid rain?
A)
Dust done
clear
B)
Carbon particles done
clear
C)
Oxygen done
clear
D)
Sulphur dioxide done
clear
View Solution play_arrow
-
question_answer38)
Most of the well water and spring water are replenished by
A)
dams. done
clear
B)
floods. done
clear
C)
ground water. done
clear
D)
all of the above done
clear
View Solution play_arrow
-
question_answer39)
Which of these constituents present in w air leads to the formation of fog and mist?
A)
Nitrogen done
clear
B)
Oxygen done
clear
C)
Water vapour done
clear
D)
Carbon dioxide done
clear
View Solution play_arrow
-
question_answer40)
The process of collecting rain water in huge, cemented pits is called
A)
storing of water. done
clear
B)
filtration of water. done
clear
C)
transportation of water. done
clear
D)
rain water harvesting. done
clear
View Solution play_arrow
-
question_answer41)
Which of the following will cause a decrease in the water table at a place in future?
A)
Lack of rain water harvesting infrastructure done
clear
B)
Emmigration done
clear
C)
Cloud seeding done
clear
D)
Growing trees done
clear
View Solution play_arrow
-
question_answer42)
Water is
A)
an element. done
clear
B)
a compound. done
clear
C)
a mixture. done
clear
D)
Both (a) and (c) done
clear
View Solution play_arrow
-
question_answer43)
Why is mineral water better than distilled water for drinking?
A)
Mineral water is cheap. done
clear
B)
Mineral water is easily available. done
clear
C)
Mineral water contains dissolved salts. done
clear
D)
Mineral water is colorful. done
clear
View Solution play_arrow
-
question_answer44)
Soil erosion takes place due to
A)
floods. done
clear
B)
drought. done
clear
C)
transpiration. done
clear
D)
All of the above. done
clear
View Solution play_arrow
-
question_answer45)
Which of the following causes water to change from one state to another?
A)
Pressure done
clear
B)
Concentration done
clear
C)
Temperature done
clear
D)
Volume done
clear
View Solution play_arrow