Answer:
greenhouse gas most responsible for global warming
Explanation:
Not sure but b or c but lmk
Excretion is the only effective way invertebrates fight disease. Because they don't have an immune system working daily, invertebrates only have the capacity to excrete and cleanse their body of harmful materials.
I need more details sorry
B. Wind.
A abiotic factor is non-living, making a, c and d wrong.