1. The answer is False.
A healthy ecosystem can adapt to short-term changes. Many species have adaptive characteristics that help them respond to natural, short-term changes. For example, some plants can regrow from roots that survived in a forest fire.
2. The answer is C.
Climate warming is caused by CO₂ trapped in the atmosphere. These trapped carbon dioxide molecules are absorbed by the oceans. The absorption of CO₂ causes chemical reactions in seawater and one of them is it decreases the carbonate ion concentration.
