Tag: evs

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Questions Related to evs

Multiple choice evs sources of water water resources and conservation receding water table water conservation and irrigation

Choose the correct answers from the alternatives given .
Which of the following is not a property of water that helps explain why water is so important to life on earth?

  1. Water expands when frozen

  2. Nonpolar compounds dissolve- well in water

  3. Water can absorb great quantities of heat with relatively-small increase in its temperature

  4. Water molecules attract each other
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water is a polar solvent. Therefore, nonpolar compounds do not dissolve well in water. This is a property of water, but it is not a property that explains why water is important to life; rather, it is a limitation.

Multiple choice evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

The primary function of leaf is ________.

  1. Growth

  2. Reproduction

  3. Photosynthesis

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

Leaves are those parts of plants that perform the primary function of photosynthesis and transpiration. Growth, Reproduction and Protection are it's secondary or modified functions.

So, the correct option is 'Photosynthesis'.

Multiple choice evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

Which of the following are called food factories of the plants?

  1. Leaves

  2. Stem

  3. Roots

  4. Flowers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The part of the plant which produces food is a leaf. Leaves prepare food in presence of sunlight by a process called photosynthesis. In this process, food is produced by utilizing water and carbon dioxide in the presence of sunlight. Therefore, leaves are called food factories of the plants.
So, the answer is A.
Multiple choice evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

Match the column I with column II and select correct option.

Column-I Column-II
(a) Pedicel i Reduced leaf
(b) Peduncle ii Stalk of the flower
(c) Bract iii Stalk of the leaf
(d) Petiole iv Inflorescence axis

  1. a-ii, b-iv, c-i, d-iii

  2. a-iii, b-iv, c-i, d-ii

  3. a-i, b-iii, c-iv, d-ii

  4. a-iv, b-i, c-ii, d-iii
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pedicel is the stalk of a flower (a-ii), Peduncle is the inflorescence axis (b-iv), Bract is a reduced leaf (c-i), and Petiole is the stalk of a leaf (d-iii).

Multiple choice evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

Which of the following part of the plant performs photosynthesis?

  1. Leaves

  2. Stem

  3. Roots

  4. Root nodules
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The plant is morphologically divided into roots, stem and leaves.

  1. Root that forms from the radicle of the embryo and is positively geotropic helps in the absorption of water and mineral from the soil.
  2. The stem that forms from the plumule of the embryo and holds various different part of the plant is positively phototrophic and provide mechanical support to stem.
  3. Leaves that originate from the stem and have a green coloured pigment called chlorophyll is the kitchen of plant and helps to convert the inorganic substance into organic substance.
  4. Root nodules are present in legume plants for the nitrogen fixation.
So, the correct answer is 'Leaves'.