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 :)
Neurons process and transmit information
Answer:
Dioecious Plants are plants of both the male and female sexes. Both male and female plants may have flowers, but one of them will have "male" flowers and the other "female" flowers.
Explanation:
Sound is a wave and will have different frequencies when the wavelength changes. When the wavelength changes the amplitude will rise or fall creating different pitch.
