(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
The term humidity generally refers to the amount of this water vapor in the atmosphere. Each atmospheric gas has its own vapor pressure, a measure of the number of molecules present at a given temperature. The vapor pressure of water thus measures the amount of water vapor in the air. The saturation vapor pressure is the vapor pressure when liquid water begins to condense. Relative humidity is determined by using the actual vapor pressure divided by the saturation vapor pressure (see below).