The 'Common Carbon Metric', supported by UNEP, has been developed for
- A.assessing the carbon footprint of building operations around the world
- B.enabling commercial farming entities around the world to enter carbon emission trading
- C.enabling governments to assess the overall carbon footprint caused by their countries
- D.assessing the overall carbon footprint caused by the use of fossil fuels by the world in a unit time
Correct answer
Explanation
The correct answer is A, assessing the carbon footprint of building operations around the world. The Common Carbon Metric is a standard way to measure and report the energy use and emissions of buildings in use.
It was developed by UNEP's Sustainable Buildings and Climate Initiative (UNEP-SBCI). Buildings account for a large share of global energy use and greenhouse gas emissions, but countries measured them in different ways, so their figures could not be compared. The metric reports emissions per square metre per year and per occupant, giving a consistent baseline for tracking building performance and for climate policies and carbon reporting in the construction sector.
B is wrong: it is not a tool for farms to join carbon trading.
C is wrong: national emission totals are reported through UNFCCC inventories, not this building metric.
D is wrong: it does not measure the world's fossil fuel emissions per unit time.
Exam tip: Common Carbon Metric = UNEP-SBCI, carbon footprint of building operations (kgCO2e per m² per year).
Practice Questions
View allWhich one of the following statements with regard to growth of coral reefs is not correct?
- A.Coral can grow abundantly in freshwater.
- B.It requires warm water between 23 °C-25 °C.
- C.It requires shallow saltwater, not deeper than 50 metres.
- D.It requires plenty of sunlight to aid photosynthesis.
Show answer
Reef-building corals are marine animals and die in fresh water, so this statement is false. Corals are tiny polyps that build skeletons of calcium carbonate and live with algae called zooxanthellae inside their tissues.
Read the full explanation →Which one of the following biosphere reserves is spread over three States in India?
- A.Nilgiri
- B.Achanakmar-Amarkantak
- C.Seshachalam
- D.Agasthyamalai
Show answer
The Nilgiri Biosphere Reserve spreads across Tamil Nadu, Kerala and Karnataka. Set up in 1986, Nilgiri was India's first biosphere reserve, and in 2000 it became the first Indian reserve on UNESCO's World Network of Biosphere Reserves.
Read the full explanation →Which of the following is/are renewable source(s) of energy? 1. Fossil fuel 2. Biofuel 3. Uranium 4. Hydropower Select the correct answer using the code given below.
- A.2 only
- B.3 and 4
- C.1 and 3
- D.2 and 4
Show answer
Biofuel and hydropower are renewable because nature replaces them within a human lifetime, while fossil fuels and uranium are not.
Read the full explanation →Which one of the following is NOT decomposed by bacterial action ?
- A.Vegetable remains
- B.Plastic materials
- C.Animal carcasses
- D.Wastes of flowers
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Ordinary plastics are non-biodegradable, so bacteria and fungi cannot break them down in any useful length of time. Most plastics, such as polyethylene, polypropylene and PVC, are long synthetic polymers made from petroleum.
Read the full explanation →According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?
- A.Locomotives using fossil fuels
- B.Ships using fossil fuels
- C.Extraction of metals from ores
- D.Power plants using fossil fuels
Show answer
The EPA names the burning of fossil fuels by power plants and other industrial facilities as the largest source of sulphur dioxide.
Read the full explanation →