Answer:
Seismographs
Explanation:
Seismographs are instruments used to record the motion of the ground during an earthquake. They are installed in the ground throughout the world and operated as part of a seismographic network.
Pretty sure its called the 38th Parallel, or the Demilitarized Zone. :)
Answer: A. Initial opening of the Atlantic ocean
Explanation: Out of all the events, the initial opening of the Atlantic ocean is the most recent. The Atlantic Ocean first opened up around 140 million years ago as Africa separated from South America. Around this time, India separated from Antarctica and Australia to form the central Indian Ocean.
Formation of the Hudson highlands occured over a billion years ago, formation of the Catskill delta was about 400million years ago and the
collision of North America and Africa occurred around 300milion years ago.
Answer:
US citizens would require about 5.0 earths to sustain themselves
Explanation:
Ecological Footprint measures the human demand of earth, in terms of resources. In short, it measures the human impact on the environment. These footprints and biological capacity can be compared with nations, individuals, etc. U.S.A ranks 5th in terms of ecological footprint per person i.e 8.22 gha as of 2012 as any gha above 1.73 is considered as unstable for sustainable development. More than 85% of humanity lives in the world that is run out from ecological footprint capacity.