Which of the following would NOT be an advantage for walking or ...

[rl]

Which of the following would NOT be an advantage for walking or biking?
 
  A) It is less expensive than driving.
  B) The fuels that provide energy for walking or biking are nonrenewable.
  C) An individual person would have a carbon-neutral effect on the environment.
  D) Walking or biking helps a person lose weight.

Question 2

Ka for HF is 7.0  10-4. Kb for the fluoride ion is ________.
 
  A) 2.0  10-8
  B) 1.4  10-11
  C) 7.0  10-18
  D) 7.0  10-4
  E) 1.4  103

[zogaridan]

Answer to Question 1

B

Answer to Question 2

B