The answer is option B "temperature." Greenhouse effect is the process of trapping the suns heat in the lower atmosphere. A increase of greenhouse effect would cause surface temperatures to rise. Which then contributes to global warming because of melting the ice bergs in cooler areas on Earth and causing waters to rise and creating storms. It's not option A because the sun gives off heat or harmful radiant waves which doesn't increase carbon dioxide levels. Wouldn't be option D because it would contribute but it wouldn't happen without a increase of temperature. It also wouldn't be option C because oxygen isn't relevant in this case.
Hope this helps.
B PLANT<span> maximize its </span>photosynthesis
Answer:
Explanation:Research questions are formulated by Scientist to aid research by given it more direction and guide.
For a Thai Fishermen the following questions will be formulated,
1. What is the relationship of Thai men eyesight and fishing
2. What makes the eye sight so important
3. Is eye sight a tool for fishing
4. What is the biology or features of Thai men eyes