The correct answer is b-) an mT air mass.
MT (Maritime Tropical) air masses are warm and moist air masses. They originate in the Gulf of Mexico, where heat and moisture is transferred on the overlaying air. They move towards north and transport warm and moist air to the USA's southeast and alongside the Atlantic coast, thus increasing the precipitation.
The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.
Chris's city is in a wet tropical climate.
High amount of precipitation, and warm humid climate is typical for the regions around the Equator, thus the climate in which Chris's city is located seems to belong to a tropical wet climate type, somewhere around the Equator.
Mark's city is in a cold desert climate.
The big variation of temperatures, with having hot summers and cold winters, as well as extremely low amount of precipitation, are typical for the cold deserts that are mostly dispersed in Asia, thus the city in which Mark lives will belong to a cold desert climate.
<span>The outer edge of a meander, where material is being eroded, is called a cut bank.
A cut bank is found on the outside bank of a water channel and it continuously erodes. You can find a lot of them in more mature or meandering streams. </span>
C.
Oxygen should be shown as an output of plant photosynthesis.