Make sure you have understood everything in this section (Lessons B10 and B11).
Use the Self-Check below, and the Self-Check & Lesson Review Tips to guide your learning.
This is also a good time to visit your Section 3 Checklist to make sure you have completed all the recommended learning activities.

Unit B Section 3 Self-Check

Instructions


Complete the following 6 steps. Don't skip steps – if you do them in order, you will confirm your understanding of this section and create a study bank for the future.

  1. DOWNLOAD the self-check quiz by clicking here.

  2. ANSWER all the questions on the downloaded quiz in the spaces provided. Think carefully before typing your answers. Review the lessons of this section if you need to. Save your quiz when you are done.

  3. COMPARE your answers with the suggested "Self-Check Quiz Answers" below. WAIT! You didn't skip step 2, did you? It's very important to carefully write out your own answers before checking the suggested answers.

  4. REVISE your quiz answers if you need to. If you answered all the questions correctly, you can skip this step. Revise means to change, fix, and add extra notes if you need to. This quiz is NOT FOR MARKS, so it is perfectly OK to correct any mistakes you made. This will make your self-check quiz an excellent study tool you can use later.

  5. SAVE your quiz to a folder on your computer, or to your Private Files. That way you will know where it is for later studying.

  6. CHECK with your teacher if you need to. If after completing all these steps you are still not sure about the questions or your answers, you should ask for more feedback from your teacher. To do this, post in the Course Questions Forum, or send your teacher an email. In either case, attach your completed quiz and ask; "Can you look at this quiz and give me some feedback please?" They will be happy to help you!

Self-Check Time!

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Self-Check Quiz Answers

Click each of the suggested answers below, and carefully compare your answers to the suggested answers.

If you have not done the quiz yet – STOP – and go back to step 1 above. Do not look at the answers without first trying the questions.

Both chemical and natural fertilizers are important for agriculture because they add minerals to the soil that plants need as nutrients. Plants require these nutrients to build their cells and to perform important functions such as photosynthesis.
Loam is good for growing most types of plants because it contains everything plants need. Loam contains lots of nutrient-rich organic material. Loam holds water long enough for plant roots to absorb it. Also, loam drains well, which avoids the problem of root rot.
Compost recycles plant and animal wastes into the useful form of fertilizer. It prevents these wastes from rotting in the dump. Also, compost is less expensive to use on a small scale than chemical fertilizers are.
The soil in this garden that produced the stubby carrots is probably clay, which is sticky and difficult for plant roots to break through. The carrot roots were unable to push through deep clumps of clay, which is why they are short.
In the spring, many people put fertilizers on their lawns. A heavy rainstorm causes fertilizer to wash from the lawns and into the storm sewer system. When the storm sewer pipes empty into the river, lawn fertilizer enters the river. Fertilizer provides nutrients for algae, which allows them to reproduce faster, especially near the storm sewer openings.