Answer:
Dolphins use their strong snouts as a powerful weapon to ram sharks, targeting their soft underbellies and gills to cause injuries. Sharks pose less of a threat to larger members of the dolphin family. Indeed, orcas are the top predator in the ocean and small sharks are a target for some populations.
Answer:
I am guessing The second Cause only petroleum stay in the top of water
3)false
4)blood pressure
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Answer:
Corn Picker. In 1850
Cotton Gin.
Cotton Harvester.
Crop Rotation.
The Grain Elevator.
Hay Cultivation.
Milking Machine.
Plow.
Explanation:
there are some agriculture inventions