Answer:
well
Explanation:
The Grand Canyon contains some of the oldest exposed rock on Earth. The mile-high walls reveal a cross section of Earth's crust going back nearly two billion years. These rock layers have given geologists the opportunity to study evolution through time
you can search the internet about it
Fish come from fresh water, salt water, the ocean, rivers, etc. They also come from the male and female fish that mated
Happy studying! ^_^
Answer:
i'd say (D) BECAUSE OF THE EART'S SHAPE
Explanation: