Tag: importance of water

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Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

What is structure of water?

  1. Bihedral

  2. Trihedral

  3. Tetrahedral Arrangement

  4. Singe hedral
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a water molecule (H2O), the oxygen atom is sp3 hybridized, resulting in a tetrahedral arrangement of electron pairs, with the two hydrogen atoms occupying two of the corners.

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

The upper part of sea water mainly contains ______________.

  1. Nektons only

  2. Planktons only

  3. Nektons and planktons both

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plankton's are passively drifting or floating organisms. Most of these minute organisms, plankton includes photosynthesizing organisms as well as heterotrophic organisms.

So, the correct answer is 'Planktons only'

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

Maximum absorption of rainfall water is done by ______________.

  1. Tropical deciduous forest

  2. Tropical evergreen forest

  3. Tropical Savannah

  4. Scrub forest
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The biome occurs in equatorial or sub equatorial regions where both rainfall and warmth are abundant Rainfall is above 140 cm/yr usually between 200-500 cm/yr. It may be upto 1000 cm. Rain occurs through major parts of the year.

So, the correct answer is 'Tropical evergreen forest'

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

Match List I(Type of rainfall) with List II (Type of vegetation) and select the correct answer.

List-I List-II
a. Moderate to heavy rainfall throughout the year $1$. Scrub forests
b. Moderate to heavy rainfall occurring in $7$ to $8$ months in a year $2$. Grasslands
c. Little summer precipitation but sufficient rainfall in the winter $3$. Evergreen rain forests
d. Sufficient rainfall in summer and little in winter $4$. Deciduous forests
  1. A-$2$, B-$4$, C-$3$, D-$1$
  2. A-$3$, B-$1$, C-$4$, D-$2$
  3. A-$2$, B-$3$, C-$1$, D-$4$
  4. A-$3$, B-$4$, C-$1$, D-$2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Matching rainfall patterns to vegetation: Moderate/heavy year-round supports evergreen forests (3); 7-8 months supports deciduous forests (4); winter rain supports grasslands (2); summer rain supports scrub (1).

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

______________ is the natural phenomenon, caused by an unlimited and unprecedented rainfall.

  1. Soil erosion

  2. Cyclone

  3. Floods

  4. Heightening
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Floods are natural disasters caused by excessive and prolonged rainfall that exceeds the drainage capacity of the land.

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation importance of water water: a precious resource

Water is listed as one of the basic

  1. Solid forms of matter

  2. Nutrients of cool-aid

  3. Needs of animal and plant life

  4. Unit of life
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water is essential for all living beings (human, animal and plant) for various
metabolic reactions. They gain water not on;y through the action of drinking but also from the food they eat.