Answer:
1. humans
2. birds
3. trees/plants
Explanation:
1. more die as time goes on
2. all die at a constant rate
3. most die at the beginning but those that survive live long
Assuming we don't know the speed capabilities of the tractor, the time it would take simply be the rate in miles per hour. It has a direct correlation between speed and time spent, so the miles the tractor needs to plow is unneeded.
The correct answer should be the worldwide system of stock markets.
It's actually a system of American stock markets and functions for the US economy. Historically some argue that it was based on a wall that protected from Indians, but it was more like a wooden palisade.It is the financial center of the US and the place of the NY Stock Exchange.
According to a continuous study conducted by the NASA's Goddard institute, the Earth's average global temperature has risen by 0.8 degrees Celsius or 1.4 degrees Fahrenheit since 1880. Since the beginning of the Industrial Revolution, the thermometer readings have risen continuously.