input question: - Composition of blood is regulated - Volume of water in blood is kept constant - PH is kept at a constant level - Kidneys help regulate blood pressure - Kidneys stimulate the making of red blood cells - Calcium levels are maintained. What might be the first step of the process????
output answer: Kidneys filter waste out of blood

input question: - Water levels of a river or lake get higher - Water builds up on the ground - Water covers streets - Water gets deep in some places - Water goes into houses and other buildings - The rain stops or the dam is repaired - Water flows into streams - The rest of the floodwater evaporates. What might be the first step of the process????
output answer: There is a lot of rain or a dam breaks

input question: - Put the ice cube tray in the freezer - Wait 5 to 6 hours - Take the ice cube tray out of the freezer - Bend the tray slightly to get the ice cubes out and into a drink. What might be the first step of the process????
output answer: Put water in an ice cube tray

input question: - The passenger arrives early at the airport - The luggage is checked - The passenger waits in line - The passenger shows their identification and gets a boarding pass - The passenger goes to their gate - The passenger gets in line when it's time to board - The person boards the plane - The plane arrives at the destination - The passenger gets off the plane at their destination. What might be the first step of the process????
output answer:
An airline reservation is made