Answer:
Mesosphere
Explanation:
The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C).
I believe its b , hope it helps
Correct answer choice is :
<h2>A) Former retail centers have been replaced by large malls.</h2><h2 /><h3>Explanation:</h3><h3 />
Before the arrival of the Colonial era in the region which was later called Nigeria, the people were involved in the management of the physical growth of their region, an activity that was defined as traditional establishment plan. Records of the early preachers and explorers showed the presence of cities and towns such as Kano, Zaria, Ibadan, and Oyo in the territory.
