Answer is option "B"
Step-by-step explanation:
- Expanded temperature draw out the quicker development improvement of yields and the Temperature furthermore impacts on photosynthesis rates and breath. C4 crops (maize, sorghum, sugarcane, etc.) have higher perfect temperatures for photosynthesis than C3 crops (grains and most vegetables and common items).
- Ecological change can have included some constructive outcomes crop creation as extended carbon dioxide centers in the atmosphere can bolster photosynthesis of C3 yields and water use viability in both C3 and C4 crops, and improve crop advancement.
- Hence, the right answer is option B "Increased air temperature.