Lesson 1.3 - Producing More Food: Part III

You learned that scientists have developed two major types of chemicals to help increase food production.  The chemicals were pesticides and synthetic fertilizers. 

Read Synthetic Fertilizers on page 293 in your textbook. Then, answer the following questions.

 

Question 1. What is the one nutrient in synthetic fertilizers?

Question 2. Why do farmers use synthetic fertilizers?

Question 3. What cycle can synthetic fertilizers affect?

 

Check your answers with those that follow.

 

 

 

 

 

 

 

 

 

 

 

 

Answers to Questions:

Question 1. What is the one nutrient in synthetic fertilizers?

One nutrient that synthetic fertilizers contain is nitrates. 

Question 2. Why do farmers use synthetic fertilizers?

Farmers use synthetic fertilizers to increase the yields of crops.  Therefore, they can grow more food on the same amount of land.

Question 3. What cycle can synthetic fertilizers affect?

Synthetic fertilizers can affect the nitrogen cycle.

 


Go to the next page to continue Lesson 1.