Answer: they are used to measure and keep things precise during constuction
Explanation: because if you watch videos and look up info and research it tells you about their jobs and what they use for their jobs
Transpiration: process in which plants release water vapor into the air
Evaporation: process in which water changes to a vapor
Precipitation: water that falls from clouds toward the ground
Condensation: water vapor that cools down to form water droplets
Groundwater: flowing of rainwater downhill to form streams and rivers
Answer:
is about 4.6 billion years old
The correct answer is pollution.