Answer:
A. flooding
Explanation:
At high elevations air becomes thinner so a person may not be receiving enough oxygen which can cause dizziness. Flooding typically happens at sea level.
The only example among these that is a water-conservation technique that also reduces water pollution is c) factories reusing cooling water instead of returning it to a river.
The ratio of H⁺ ions to OH⁻ ions at a pH = 2 is 10¹⁰
<h3>Further explanation</h3>
Given
ph = 2
Required
The concentration of H⁺ and OH⁻ ions
Solution
- The concentration of H⁺ ions
pH=-log[H⁺]
2=-log[H⁺]
[H⁺]=10⁻²
- The concentration of OH⁻ ions
pH+pOH=14
pOH=14-2
pOH=12
pOH=-log[OH⁻]
12=-log[OH⁻]
[OH⁻]=10⁻¹²
- The ratio of H⁺ ions to OH⁻ ions at a pH = 2

spdcowihdej 1
aodnwofrh 2
sixj3
dosprwpr3
Lipids is a kind of biochemical that does not dissolve in water and makes up the cell walls fats oil and waxes