Answer:
Continents were once one landmass and have drifted apart.
Explanation:
Wegener's continental drift theory is based on the idea that the seven continents were once fused together as one super continent before eventually drifting apart under tectonic movement. This idea has received support from how continents on the map has been seen to be close fits and the finding of fossil materials across oceans from where they are currently found.
Answer:
Urban system
Explanation:
An urban system is a term used to refer to an area in which daily commuting occurs. It is an interdependent group of an urban settlement.
The answer to this question is C. In the 1800s mexico and the United states fought for territory near Texas, and eventually won after many engagements, such as the Alamo. Hope I helped.
Water pollution can bring bacteria, chemicals, and parasites into your body.