Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
Explanation:
The large landmasses on Earth are called continents. There are seven recognized continents on the planet: Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America. The largest continent is Asia.
aerial photoghary is used for detecing natural disasters.
The answer to the question is B