Biology
Grade-7
Easy
Question
Pick the odd one out.
- Organic fertilizer
- Herbicide
- Biofertilizer
- Inorganic fertilizer
Hint:
- Biofertilizers contains live microorganisms
The correct answer is: Biofertilizer
- Biofertilizers are the organisms which improve the nutrient quality of the soil
- Biofertilizers contain the live organisms
- Organic , Inorganic fertilizer and herbicides contains either the chemicals or by products of naturally occurring processes
Related Questions to study
Biology
_____________________ were implemented because chemical fertilizers have a negative impact on soil fertility.
- Inorganic fertilizers
- Biofertilizers
- Organic fertilizers
- Synthetic fertilizers
_____________________ were implemented because chemical fertilizers have a negative impact on soil fertility.
BiologyGrade-7
- Inorganic fertilizers
- Biofertilizers
- Organic fertilizers
- Synthetic fertilizers
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The plants' straws and stalks are strengthened by the _________________ in the fertilizers.
- Nitrogen
- Phosphorous
- Potassium
- Silicon
The plants' straws and stalks are strengthened by the _________________ in the fertilizers.
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- Nitrogen
- Phosphorous
- Potassium
- Silicon
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If there is addition of chemical phosphorous during the preparation of fertilizer, then it is ___________ type of fertilizer.
- Inorganic
- Biofertilizer
- Organic
- Synthetic
If there is addition of chemical phosphorous during the preparation of fertilizer, then it is ___________ type of fertilizer.
BiologyGrade-7
- Inorganic
- Biofertilizer
- Organic
- Synthetic
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The given picture illustrates the use of _________________ by plant.

- Inorganic fertilizer
- Biofertilizer
- Insecticide
- Herbicide
The given picture illustrates the use of _________________ by plant.

BiologyGrade-7
- Inorganic fertilizer
- Biofertilizer
- Insecticide
- Herbicide
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___________________ is a component of protein and an amino acid in plants.
- Potassium
- Silicon
- Nitrogen
- Magnesium
___________________ is a component of protein and an amino acid in plants.
BiologyGrade-7
- Potassium
- Silicon
- Nitrogen
- Magnesium
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The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
- Fertilizer
- Inorganic fertilizer
- Herbicide
- Soil fertility
The capacity of the soil to support plant growth and maximize crop yield is known as __________________.
BiologyGrade-7
- Fertilizer
- Inorganic fertilizer
- Herbicide
- Soil fertility
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Natural fertilizers derived from plants and animals are known as _________________.
- Biofertilizer
- Organic fertilizer
- Inorganic fertilizer
- Fertilizer
Natural fertilizers derived from plants and animals are known as _________________.
BiologyGrade-7
- Biofertilizer
- Organic fertilizer
- Inorganic fertilizer
- Fertilizer
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Chemicals that kill insects that destroy crops are called ________________.
- Fertilizers
- Insecticides
- Herbicides
- Biofertilizers
Chemicals that kill insects that destroy crops are called ________________.
BiologyGrade-7
- Fertilizers
- Insecticides
- Herbicides
- Biofertilizers
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Plants take in water with the help of their _________.
- Leaves
- Stem
- Roots
- Flower
Plants take in water with the help of their _________.
BiologyGrade-7
- Leaves
- Stem
- Roots
- Flower
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In _________ pollination, the resulting progeny have lower disease immunity.
- Self
- Cross
- Stigma
- Wind
In _________ pollination, the resulting progeny have lower disease immunity.
BiologyGrade-7
- Self
- Cross
- Stigma
- Wind
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Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
- Self
- Cross
- Stigma
- Wind
Only a limited number of flowers undergo ___________ pollination, and they are characterized by having small, odorless, greenish blossoms.
BiologyGrade-7
- Self
- Cross
- Stigma
- Wind
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The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
- Self
- Cross
- Stigma
- Wind
The female reproductive portion of a flower, the _____________, is very large, sticky, and feathered to reach fully outside the bloom.
BiologyGrade-7
- Self
- Cross
- Stigma
- Wind
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Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
- Self
- Cross
- Stigma
- Wind
Through the process of ___________ pollination, all unisexual plants are capable of reproducing.
BiologyGrade-7
- Self
- Cross
- Stigma
- Wind
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Humans perform artificial pollination, which is called anemophily.
- True
- False
Humans perform artificial pollination, which is called anemophily.
BiologyGrade-7
- True
- False
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The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
- True
- False
The male reproductive parts of anemophilous flowers tend to produce a very less quantity of pollen.
BiologyGrade-7
- True
- False