Answer:
3 and 4
Explanation:
Both appear to be up river which mean they're coming DOWN to contaminate the uptake. If they're ahead of the uptake facility they're not going to show up in the water. I only know this because of City Skylines :)
The quicker the regulation, the less energy and material wasted to unneeded products and pathways.
Answer:
X and why realationship is the Distance between two given points
Explanation: