Test yourself

Read the text again and say it the following sentences an true or false or trey don’t have that information.

1. The dominant trees sleep until later into the spring.

- Seed germination requires hot soil temperatures.

- By the time the canopy closes, the young plants are able to survive for several months in the shade.

- Many forest species have seeds with a built-in system.

- This system depends on green light reaching seeds on the forest floor.

- When light enters a leaf, the green parts of the visible spectrum are trapped by leaf pigments.

- Many seeds possess special chemicals that, when stimulated by red light, start the seeds’ germination.

- When the sun’s red wavelengths reach and penetrate into the soil, the waiting seeds are stirred into activity.

Speaking: A Chance for Seeds to Germinate

9. Define the term “seed germination” and its value for plants.

Writing: Business Letters

10. Is it Letter of application or Letter of complaint?

Unit 12

Conservation and

Recycling.

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