Question

question 3
which quote from the passage expresses the practical alternative to electricity when using passive solar?
o \during the summer, the combination of the cool temperature of the earth beneath the fl plus the thick walls can keep the house comfortable without the use of air - conditioning.\
o
ow, lo erm st have revealed some problems. for one, without sufficient sunlight during the winter, large amounts of natural gas known as propane and/or wood are used to heat the home.\
o \building an earthship may be an attractive choice for those who want to use fewer of our planets non - renewable resources.\
o \floor - to - ceiling windows on an earthships south wall also allow plenty of sunlight.\

Explanation:

To solve this, we analyze each option:

• Option 1: Talks about summer comfort without AC, not an alternative to electricity for passive solar.
• Option 2: Mentions using propane/wood (non - electric) to heat home when sunlight is insufficient in winter, which is a practical alternative to electricity in passive solar use.
• Option 3: Discusses earthship as a choice for non - renewable resource use, not an electricity alternative.
• Option 4: Describes window function for sunlight, not an electricity alternative.

Answer:

B. "Now, long - term studies have revealed some problems. For one, without sufficient sunlight during the winter, large amounts of natural gas known as propane and/or wood are used to heat the home." (Note: Assuming the second option is labeled B; adjust the label as per the original question's numbering if different)