In cellular respiration, molecules containing react with oxygen. A. chemically
B. physically
C. digestion
D. carbon
E. complex
F. animals
G. matter
H. energy
I. molecules
J. respiration
K. sugar
L. carbon dioxide
M. plants

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?