What leads to the creation of island arcs ? 1. Collision of two oceanic plates.
2. Collision of two continental plates.
3. Collision of a continental and an oceanic plate.
4. all of the above

≅200-130 milions years ago pangea splited in 2 continents

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

a. an idea which cannot be disproven!

explanation:

true. until louis pasteur developed the rabies vaccine, “vaccines” had referred only to the cowpox inoculation for smallpox. hope this : )