Grade 11 Scientists in Training Revision

Define the following:

i. Pollution

ii. Pollutant

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i. List 3 types of pollutants

ii. Name 2 types of fossil fuels

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i. Explain what is meant by the term Global Warming.

ii. What is the main cause of global warming.

iii. What are 2 effects of global warming

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Decribe the Process of Eutrophication

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Give the WORD equation for Respiration

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Give 2 Differences between anaerobic respiration & aerobic respiration

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What are 2 difference between Subsistence farming and Commercial Farming

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Which feature makes the alveoli efficient for gaseous exchange?

• Colour

• Shape

• Large volume

• Large surface area

Which gas is represented by letter Q?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Water Vapour

What gas does the following represent?

A.

B

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