4.6 Pesticides & Fertilizers

2.

Farmers use fertilizers because they

Add nutrients, like nitrogen and phosphorus, to the soil.
Make crops resistant to harmful bugs.
Provide a rich water supply to the crops.
Kill unwanted organisms that destroy crops.

Correct Answer

A. Add nutrients, like nitrogen and phosphorus, to the soil.

Explanation

Farmers use fertilizers to add nutrients, such as nitrogen and phosphorus, to the soil. These nutrients are essential for the growth and development of crops. Nitrogen helps in the production of proteins and chlorophyll, while phosphorus is necessary for energy transfer and root development. By replenishing the soil with these nutrients, farmers ensure that their crops have access to the necessary elements for healthy growth and high yields. Fertilizers do not directly make crops resistant to harmful bugs, provide water supply, or kill unwanted organisms.

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3.

Which of the following is NOT a negative consequence of chemical pesticide use?

They can pollute waterways.
They can threaten human health.
They can pollute the air.
They can lead to the evolution of pest resistance.

Correct Answer

A. They can pollute the air.

Explanation

Chemical pesticide use can have several negative consequences, including polluting waterways, threatening human health, and leading to the evolution of pest resistance. However, the statement that chemical pesticide use can pollute the air is incorrect. While some pesticides may have volatile components that can become airborne, the primary mode of pollution is through water and soil contamination. Therefore, the correct answer is that chemical pesticide use does not directly pollute the air.

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4.

Which of the following statements about fertilizers is NOT true?

The use of chemical fertilizers has increased soil fertility and increased crop yields.
Compost is a type of natural fertilizer made from decamped organic waste.
The use of fertilizer builds up resistance in harmful pests.
Using too much fertilizer can pollute waterways and lead to algae-blooms.

Correct Answer

A. The use of fertilizer builds up resistance in harmful pests.

5.

Which of the following best explain why spraying pests with large amounts of pesticides becomes ineffective over time?

Pests learn to fight off the effects of pesticide.
Pests learn to avoid plants with pesticide on them.
Pests with a natural resistance to the pesticide survive and reproduce, producing more resistant pests in the next generation.
The chemicals in pesticides lose their effectiveness after they leave the pesticide factory.

Correct Answer

A. Pests with a natural resistance to the pesticide survive and reproduce, producing more resistant pests in the next generation.

Explanation

Spraying pests with large amounts of pesticides becomes ineffective over time because pests with a natural resistance to the pesticide are able to survive and reproduce. This leads to the production of more resistant pests in the next generation, making the pesticide less effective in controlling the pest population.

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6.

Which of the following is a sustainable alternative to chemical fertilizers?

Compost
Biological pest control
Monoculture
Pulling weeds by hand

Correct Answer

A. Compost

Explanation

Compost is a sustainable alternative to chemical fertilizers because it is made from organic waste materials, such as food scraps and yard trimmings, that are decomposed to create a nutrient-rich soil amendment. This process not only helps to reduce waste going to landfills but also improves soil health and fertility naturally, without the use of synthetic chemicals. Compost provides essential nutrients to plants, enhances soil structure, and promotes beneficial microbial activity, making it an environmentally friendly and sustainable option for fertilizing crops and gardens.

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7.

Companion planting--the close planting of different crops to protect each crop from bugs--is a sustainable alterative to which industrial farming method?

Genetically Modified Crops
Chemical pesticides
Chemical fertilizers
Machinery

Correct Answer

A. Chemical pesticides

Explanation

Companion planting is a sustainable alternative to using chemical pesticides in industrial farming. By planting different crops close together, they can help protect each other from pests naturally, reducing the need for harmful chemical pesticides. This method promotes biodiversity and ecological balance in the farming system, making it a more environmentally friendly approach compared to relying on chemical pesticides.

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4.6 Pesticides & Fertilizers

Farmers use pesticides because they

Quiz Preview

Farmers use fertilizers because they

Which of the following is NOT a negative consequence of chemical pesticide use?

Which of the following statements about fertilizers is NOT true?

Which of the following best explain why spraying pests with large amounts of pesticides becomes ineffective over time?

Which of the following is a sustainable alternative to chemical fertilizers?

Companion planting--the close planting of different crops to protect each crop from bugs--is a sustainable alterative to which industrial farming method?