These gases<span> may have consisted of hydrogen (H2), water vapor, methane (CH4) , and carbon oxides.
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Sea otters are a keystone species, meaning their role in their environment has a greater effect than other species. ... By maintaining healthy kelp forests, sea otters also indirectly help to reduce levels of atmospheric carbon dioxide, a prevalent greenhouse gas, as kelp absorbs and sequesters carbon
<span>- Stress is sometimes use to describe a threatening situation, or stimulus, and at other times to describe a response to a situation.
- The process by which we perceive and respond to events called stressors, that we appraise as threatening or challengin</span>
Answer:
I believe its option b. carbon dioxide.
The strength of an acid or base is dependent on the amount of H+ ions in the solution. The more H+ ions the more acidic. The less H+ ions the more basic.
