Question

Question 1
Task 1
* Concrete is the world's most widely used material (apart from water) due to its versatility in construction. The drawback is that, for every tonne of concrete produced, 0.82
tonne of CO2 is released. Increased CO2 levels have been linked to global warming and climate change. Concrete accounts for almost 10% of the world's CO2 emissions.
Initially there is a presence of 600 tonnes of CO2 in the atmosphere in your region.
a) Represent the relationship between quantity of concrete produced (in tonnes) and corresponding quantity of CO2 released (in tonnes). [Take at least 5 values]
o
25
50
75
100
concrete
produced in
tonnes)
Quantity of CO2
released (in
tonnes)
b) Find the rate of change.
c) Model the function of this linear relationship.
d) Using your modelled equation (from part c) calculate how much quantity of concrete will release 205000 tonnes of CO2-
e) Approximately 4 billion tonnes of concrete are produced each year. Using part c, calculate how much CO2 does this release annually. Round off your answer to 2
significant figures.
Answer:
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Answer 1

Answer:

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Step-by-step explanation:

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