Q: Does "This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings." provide a valid answer to "What can be used a main source of light for a building during the day?"?
A: no

Q: Does "Even so, the cautious Soviet intelligentsia took almost a year to begin pushing the boundaries to see if he meant what he said." provide a valid answer to "What group wanted to stop reforms?"?
A: no

Q: Does "Long-life general service lamps have lower efficiency but are used where the cost of changing the lamp is high compared to the value of energy used." provide a valid answer to "Which types of lamps may have particularly short lives?"?
A: no

Q: Does "Access to aid may be limited to those with connections, to those who pay bribes or are forced to give sexual favors." provide a valid answer to "Substandard what is often one way for corruption to enter the construction field?"?
A:
no