Answer:
a TUNDRA is a vast treeless region bordering the Arctic ocean.The positive and negative interactions that affect populations in the tundra ecosystem .
Step-by-step explanation:
Tundra is used to describe types of vegetation in the treeless high latitudes between taiga and polar ice caps, and at high altitude across the mountain above timberline.
POSITIVE AND NEGATIVE INTERACTIONS:-
The tundra is perhaps the most fragile of all the biomes because of its short growing season. A willow 10 centimeter ( 4 inches) high may have a trunk 7 centimeter in diameter and may be 50 YEARS OLD.
Human activities in the tundra leave scars that persist for centuries .
FORTUNATELY , for the tundra inhabitants, the impact of civilization is localized around oil mining and drilling sites, pipelines,mines and military bases.