Question: Process: - Air enters the nose or mouth and travels through the windpipe into the lungs - The lungs have a series of smaller and finer tubes and sacs - Air reaches the smallest and finest air sacs called alveoli - Oxygen travels from the alveoli into the blood - Oxygen-rich blood is carried to the heart - Oxygen-rich blood is pumped throughout the body by the heart - Cells take in the oxygen rich blood and release carbon dioxide rich blood - The carbon dioxide rich blood travels to the lungs - Carbon dioxide travels through the throat and is exhaled.  Question: suppose resting or sleeping happens, how will it affect a GREATER amount of oxygen being delivered to the blood stream.  - A: more - B: less - C: no effect
Answer: B

Question: Process: - Coal is burned - Sulfur in the coal combines with oxygen to form sulfur oxides - The sulfur oxides are released into the atmosphere - The sulfides combine with oxygen in the atmosphere to form sulfur trioxide - The sulfur trioxide reacts with water in the atmosphere to form sulfuric acid, a very strong acid - The sulfuric acid makes the rain acidic -   Question: suppose electric cars are more popular happens, how will it affect more sulfuric acid is formed.  - A: more - B: less - C: no effect
Answer: B

Question: Process: - A sperm meets an egg in the uterus of a woman - The sperm implants itself into the egg - The sperm and egg form a zygote on the wall of the uterus - The fetus grows and develops - The woman gives birth to a baby - The baby is raised by parents until it is able to take care of itself - The person goes out into the world and finds a job - The person meets other people and has a life - The person gets a career, and gets married - The person retires and eventually passes away -   Question: suppose more structure obstructions happens, how will it affect MORE babies.  - A: more - B: less - C: no effect
Answer: