Biology
Grade-7
Easy
Question
_____________________ were implemented because chemical fertilizers have a negative impact on soil fertility.
- Inorganic fertilizers
- Biofertilizers
- Organic fertilizers
- Synthetic fertilizers
The correct answer is: Biofertilizers
- Organic fertilizers have been implemented now a days
- Organic fertilizers improve the soil texture, increase the water holding capacity,
- So they help the plants as well as soil
- Chemical fertilizers deplete the soil of its nutrients
Organic fertilizers enhances soil fertility
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The plants' straws and stalks are strengthened by the _________________ in the fertilizers.
The plants' straws and stalks are strengthened by the _________________ in the fertilizers.
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If there is addition of chemical phosphorous during the preparation of fertilizer, then it is ___________ type of fertilizer.
If there is addition of chemical phosphorous during the preparation of fertilizer, then it is ___________ type of fertilizer.
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The given picture illustrates the use of _________________ by plant.
The given picture illustrates the use of _________________ by plant.
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___________________ is a component of protein and an amino acid in plants.
___________________ is a component of protein and an amino acid in plants.
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The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
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Natural fertilizers derived from plants and animals are known as _________________.
Natural fertilizers derived from plants and animals are known as _________________.
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Chemicals that kill insects that destroy crops are called ________________.
Chemicals that kill insects that destroy crops are called ________________.
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Plants take in water with the help of their _________.
Plants take in water with the help of their _________.
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In _________ pollination, the resulting progeny have lower disease immunity.
In _________ pollination, the resulting progeny have lower disease immunity.
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Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
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The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
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Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
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Humans perform artificial pollination, which is called anemophily.
Humans perform artificial pollination, which is called anemophily.
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The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
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Pick the odd one out.
Pick the odd one out.
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