D. Some European rivers act as international borders.
It is an octagon. If an internal angle of an octagon is greater than 180°, then it’s called a concave octagon.
Answer:
Organic and traditional farming are fundamentally different in that conventional farming depends on chemical intervention to combat pests and weeds and provide plant nutrition. Organic farming, on the other hand, produces balanced, abundant food by relying on natural concepts such as biodiversity and composting.
