# 1
The major greenhouse gas released from landfills is:
Oxygen
Carbon monoxide
Hydrogen
Methane
The Ultimate Brain Battle
Dr Ashikin Lee
Perlawanan berpasukan
Universiti
Sains
The Ultimate Brain Battle
138
Universiti
Sains
The Ultimate Brain Battle
138
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# 2
Upcycling refers to:
Enhancing the purpose of the existing materials.
Converting waste into new, usable materials.
Using items more than once before discarding them.
Adding value without destroying the original material.
# 3
Which of the following is not a biotechnology-based recycling method?
Phytoremediation of heavy metals from soil using sunflower plants
Enzyme-based depolymerization of plastic bottles
Composting leaves and food waste with microbial inoculants
Gasification of plant biomass into syngas using high-temperature reactors
# 4
What is the main goal of a circular bioeconomy?
Promote 3R (Reduce, Reuse and Recycle)-based activities
Promote economic activities that do not cause pollutions
Balance the profits from an economic activity.
Promote the use of renewable biological resources by keeping materials in use for as long as possible.
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