Answer:
(A) A gas that traps heat on earth by preventing it from returning to space
Explanation:
A is yours answer I think
Canada's gross domestic product (GDP) expanded by 6.1% in the first quarter of the year – the highest rate of growth among developed nations – and the country is expected to lead Group Seven (G7) nations in economic growth for at least the next two years. The reasons are many: Canada's banking system is sound.
Answer: C polluted water and soil can cause many deseases and side effect towards humans
It has a double-helix shape