Answer:
Water and oil
Explanation:
Water keeps us alive and oil is used in many machines and for power. Both products have cause conflicts over who gets sources of it.
Backfilling is the right one
Answer:
The crop failures were caused by late blight, a disease that destroys both the leaves and the edible roots, or tubers, of the potato plant. The causative agent of late blight is the water mold Phytophthora infestans. The Irish famine was the worst to occur in Europe in the 19th century.
D support the passage of import duties on manufactured goods
I don't get it. What's your question supposed to be???
