What do we learn about the digital gas sensor?
A. It is more accurate than traditional sensors.
B. It monitors the quality of the air when needed.
C. The fans on it work all the time.
D. It changes the dangerous air into fresh air.
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What will the newly-launched observation satellite do?
A. It will record carbon dioxide emissions and absorption worldwide.
B. It will identify carbon dioxide emission sources with higher efficiency.
C. It will monitor carbon dioxide levels in Earth’s atmosphere.
D. All of the above.
How often will the observation satellite measure CO2 level?
A. Every 60 days.
B. Every 16 days.
C. Every 60 hours.
D. Every 16 hours.
What can be learnt about satellite observation from the conversation?
A. The data gathered by satellite observation cannot be shared worldwide.
B. The United States’ Orbiting Carbon Observatory-2 was launched in 2009.
C. Japan’s carbon satellite was launched in 2014.
D. The new satellite observation can provide more accurate data.
What benefit can Chinese scientists get from the newly-launched satellite?
A. They will have more information to share worldwide.
B. They will be able to control and cut carbon dioxide emissions.
C. They will get more information provided with firsthand material.
D. They will have a louder voice at international climate summits.
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