The correct answer is C. It is taken in from the air
Explanation:
Carbon dioxide is a gas that exists mainly in the air or atmosphere. Additionally, this chemical compound is required for plants as part of photosynthesis (process to produce energy). In this process, plants take dioxide from the air through the leaves' stomata, which are small spores, use this along with sunlight and water to produce energy, and later release oxygen. According to this, carbon dioxide is taken from the air by plants (option C) while oxygen is given off.
Answer:
The correct answer is having more surface area
Explanation:
Reaction rate can be defined as the amount of substrate is converted into product per unit time .Reaction rate also called reaction velocity.
The reaction rate can be increased by increasing the surface area so that many reactant molecules can participate in the reaction as a result the reaction rate is being increased.
On the other hand decreasing the amount of reactant,diluting the solution and lowering the temperature decreases the reaction rate.
Contents of the model cell will change color.
hope this helps