Which is the main material in a solar cell? A. carbon
B. phosphorus
C. silicon
D. boron

What prevents odyssey from killing the sleeping cyclops

Anton created a chart listing different types of materials. which best complete the chart?

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars