AGR1050-ABED_1: Section 5 Think About It! | MoodleHUB 🎓

Glossary

Self - Check Questions

Test your knowledge of the contents of Section 5 by thinking about whether these statements are true or false.

For each false statement, think of a correction to make it true.

1. If a plant exhibits lower, interior, yellow leaves, it is a sign that the plant has experienced a lack of water.

False. Lower, interior, yellow leaves are an indication of over-watering.

2. Indoor lighting is not quite adequate for nearly all types of plants with green leaves.

True. Indoor lighting in most homes is usually below what most plants, with green leaves, require.

3. Although many plants are affected by the photoperiod, flowering plants are not among those.

False. The flowering response of many plants is controlled by the photoperiod.

4. Air pollution can damage green plants.

True. Air pollutants can clog up the stomata in a plant's leaves, thereby preventing the absorption of either carbon dioxide or oxygen.

5. Green plants should never be kept in a classroom full of children because they deprive children of oxygen.

False. Green plants produce much more oxygen that they can use up, and so are actually of benefit to children in a classroom.

6. Plants can be spaced very closely together, without harmful effect, provided that they receive sufficient water.

False. Spacing plants close together can affect the amount of light they receive, which in turn has a detrimental effect on photosynthesis.

7. Organic matter that has been composted, makes a very good fertilizer, but it is a poor soil condition.

False. Compost makes both a very good fertilizer and a very good soil conditioner.