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Biology
1.Ordinary table salt is sodium chloride. What is baking soda?

Answer:Option 1

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2.Ozone hole refers to

Answer:Option 1

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3.Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

Answer:Option 1

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4.Plants receive their nutrients mainly from

Answer:Option 1

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5.Movement of cell against concentration gradient is called

Answer:Option 1

Explanation:

Solution:
Active transport, this is the only transport method that can move species against their concentration gradient (from low to high concentration). Facilitated diffusion only moves species down their concentration gradient from high to low concentration.

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6.Photosynthesis generally takes place in which parts of the plant?

Answer:Option 1

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7.Most fish do not sink in water because of the presence of
  1. swim bladder
  2. air bladder
  3. air sacs
  4. air in spongy bones

Answer:Option 1

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8.Plants absorb dissolved nitrates from soil and convert them into

Answer:Option 1

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9.Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with

Answer:Option 1

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10.One of the following is not a function of bones.

Answer:Option 1

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