C. Protractor is used to determine the exact location you are in using longitude and latitude
Researchers have developed a program that measures how many planet earths are needed to provide the resources humanity is using. this ecological yardstick is called ecological footprint
The Global Footprint Network promotes the ecological footprint as a way to assess how much nature is needed to sustain a given number of people or an economy. Through an ecological accounting system, it monitors this demand. The accounts compare the biologically productive areas used by people for consumption to the biologically productive areas available in a region or around the world (biocapacity, the productive area that can regenerate what people demand from nature).
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Answer:
If we do nothing, the world will become significantly less habitable. ... Scientists have studied global warming for more than 100 years. ... The cumulative effect is to raise the planet's temperature. ... Scientists have taken detailed measurements of carbon dioxide (CO2) levels since the late 1950s
Explanation:
Longitude is the measurement east or west of the prime meridian. (Imaginary lines that run around the Earth vertically. up/down.)
The earth tilts for different times of the year. During the summer Alaska is a lot closer to the sun than florida.