(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
Relative humidity (RH) Air usually contains water vapour, the amount depending primarily on the temperature of the air. Warm air can hold more moisture than cold air, so as the air temperature falls, the maximum amount of water the air can hold also falls. The ratio of water vapour in the air to the maximum amount of water vapour the air can hold at a particular temperature is expressed as relative humidity (RH).