Since a secondary source is a source written after an event has occurred, I want to say that the answer is A. Hope this helped!<span />
Answer:
B. Carbon dioxide
Explanation:
First of all, let’s write out the photosynthesis equation to identify the products and reactants.
6CO2 + 6H2O + energy —> C6H12O6 + 6H2O
In a chemical equation with the arrow pointing right, the reactants are on the left and the products on the right.
In photosynthesis, the reactants, carbon dioxide, water, and energy, react to form the products of glucose (sugar) and oxygen.
Now, let’s look at the answer choices. We can automatically eliminate choices A (oxygen) and D (sugar) because they are products.
We are left with B (carbon dioxide) and C (water). Water isn’t really considered a major contributor to climate change. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, causing climate change.
Therefore, the best answer choice is B. Carbon dioxide
Convection keeps the earths surface warm
Geoscience processes such as weathering, erosion, and deposition are constantly changing Earth's surface. The planet's systems interact to shape Earth's history and future. By mapping the natural events in an area and understanding the geological forces involved, future events can be predicted and forecasted.
