Mercators is helpful because it is great for straight line mapping especially if you go in long distances as a sailor
Answer:
Air pressure is the weight of the atmosphere pressing down on the earth. It is measured by a barometer in units called millibars. Most barometers use mercury in a glass column, like a thermometer, to measure the change in air pressure.
Explanation:
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It was Marconi :) that’s e answer
The correct answer is letter A
Open door policy is for the exploration of imperialist territories. According to this precept, all major capitalist nations would have equal rights when carrying out the colonization and administration of their territories. In this way, the climate of competition and distrust would be reversed.
Apparently, American politicians believed that the liberal principles of free competition should be respected in this situation.