Answer: Carbondioxode and water are starting substances of the photosynthesis reaction.
Explanation: Photosynthesis is a process in which plants prepare their own food in the presence of sunlight. In photosynthesis, plant absorbed water from the soil and carbondioxode gas from the air through small opening called stomata. These two raw materials combine together in the presence of sunlight produces glucose and oxygen.
Once these resources are used up, they cannot be replaced. Humanity would be in trouble because we are dependent on them to supply most of our energy needs.
Answer:
A 50
Explanation:
Use the punnet squar and see overlap only bb will be blue
1.crust
2. mantle
3. outer core
4.inner core