(1/4 pound) but its volume is 1/2 cup or 8 Tbsp. So two sticks of butter would equal 8 oz. (1/2 pound) or 1 cup (16 Tbsp.). According to your conversion chart, the correct substitution would be 3/4 cup olive oil.
Humidity Humidity is the term for the amount of water vapor in air There are from GEO 1013 at The University of Texas at San Antonio- San Antonio
Air has water vapor in it, and the amount of water vapor that is stable in the air depends on temperature. Cool it off to where there is too much water vapor, and the vapor will condense out to form droplets, either on a cold surface, or just in the air (that's what clouds are).