The answer is A oil spills
Answer:
Explanation:
2/7 = 8/28
1/4 = 7/28
The
8+7 = 15 so 15/28 of lawn has been mowed, therefore 13/28 of the lawn is left still to be mowed.
Answer:
No dinosaur fossils are found above the Cretaceous Paleogene boundary.
Explanation:
Answer: volcanic activity
Explanation: The vast majority of volcanic activity on the planet occurs along the mid-ocean ridge, and it is the place where the crust of the Earth is born. The material that erupts at spreading centers along the mid-ocean ridge is primarily basalt, the most common rock on Earth.
Earth is mostly made of rock.
