Make sure you have understood everything in this section (Lessons E1, E2 and E3).
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 1 Checklist to make sure you have completed all the recommended learning activities.

Unit E Section 1 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!

Be a Self-Check

Superhero!



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.

Fresh, potable water is a basic human need for drinking, cooking, bathing, and cleaning. There is much less fresh water (3%) compared to salt water (97%) on Earth. It takes a lot of energy and money to desalinate ocean water, which is why it is important to protect our freshwater resources to meet the needs of billions of people on Earth.
The climate in southern Alberta is dry, often without much rain during the summer growing season. There are not many rivers and lakes close to farm fields in southern Alberta, which is why farmers need irrigation systems to divert water to the crop fields where it is needed.
Potable tap water is not considered to be distilled water because it usually still contains dissolved minerals. Tap water is potable because it doesn’t contain harmful substances, but it’s not pure distilled water. For example, hard tap water contains minerals that leave behind scale.
Even though it is fresh water, groundwater can still contain contaminants. Harmful substances on the ground can dissolve in water and move down through soil and rocks into groundwater. Harmful bacteria can also enter a well from the surface. These reasons make it important to test well water often, to make sure that it is always safe to drink.
Middle Eastern desert countries are very dry, without much precipitation. As a result, they do not have many surface sources of fresh water. Without precipitation, their groundwater supplies also do not get replenished often. Because these countries have lots of easily accessible oil, their citizens can cheaply burn oil to provide energy for the process of desalination.