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.
There are three kinds of sea floor sediment: terrigenous, pelagic, and hydrogenous. Terrigenous sediment is derived from land and usually deposited on the continental shelf, continental rise, and abyssal plain. It is further contoured by strong currents along the continental rise.
We would not have a core and/or mantel
19.96 million is the population of Romania
Earth’s atmosphere is mainly composed of nitrogen (N) and oxygen (O).
This is further subdivided into four layers according to their temperatures.
Troposphere the layer closes to the Earth's surface with 10-15 km above its
surface. Stratosphere is 15 to 50 km above the surface of the Earth and its top
is warmer than its bottom. Mesosphere extends 50
to 80 km and becomes colder with increasing altitude. <span>And thermosphere is
80 km above the surface of the Earth to outer space and is very hot.</span>