MEDIUM
Lower Secondary Stage 7
IMPORTANT
Earn 100

The cactus plant is usually found in hot deserts. It has spikes instead of leaves. Complete the table to explain how each adaptation helps the cactus to survive in the desert. The first explanation has been written.

Features How the feature helps the cactus survive in the desert
Thick waxy covering Slows down water lost from evaporation
Large juicy stems  
Spikes  
Shallow roots that spread out a long way  

Important Questions on Habitats and the Environment

MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Test-style questions>Q 4
Give two reasons why we burn fossil fuels.
MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Test-style questions>Q 4
Burning fossil fuels has been linked to smog in cities. Why is smog harmful to humans?
MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Test-style questions>Q 4
The use of aerosols containing CFCs and the burning of fossil fuels has caused a hole in the ozone layer of the Earth. Explain why scientists are concerned about the hole in the ozone layer.
MEDIUM
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 3 - Habitats and the Environment>Test-style questions>Q 4
Many countries are investing in renewable energy sources. Describe two advantages of using renewable energy rather than non-renewable energy sources.