The primary source of energy for planet Earth is sunlight. Since animals cannot absorb and use light directly, how do animals obtain energy? A. They obtain energy indirectly from photosynthesis in plants
B. They eat mushrooms which grow in the dark
C. They eat other animals which make their own energy
D. They get energy from gaseous molecules in the air

Identify a specific example for each type of technology

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold