HCl + NaOH --> NaCl + H2O.
In layman terms, salt and water are the products of this chemical reaction.
Answer: A long-term environmental change is... ice age, deforestation, urbanization, Earth's orbit, Sun's intensity, global Warming, radioactive waste/pollution. Extinction of species could happen to anyone of the food webs in a long term change.
Explanation:
Carbon is a solid at room temperature.
Abiotic factors are non-living parts of an ecosystem so the answer is C. air temperature. Biotic facters are living things.