The kangaroo would not live in either freshwater or marine biomes.
It also would not live in the tundra.
If you can consider space a biome, I imagine that would be the place with the least amount of animals.
A parrot would likely live in a tropical forest
The biome at the highest mountains in the Alps would likely be an alpine tundra biome. This biome is characterized by cold temperatures, low oxygen levels, and thin soil. Plants and animals in this biome are adapted to survive in harsh conditions, such as strong winds and extreme temperature fluctuations.
The cactus would be the least adapted plant for an estuary ocean biome. Cacti prefer hot, dry biomes rather than aquatic ones.
I would think he kangaroo would be the least like the others mainly because it is a marsupial. In addition, the kangaroo is the only animal listed in the question that doesn't walk around on 4 legs.
Oak trees would likely be found in a temperate deciduous forest biome, birch trees in a boreal forest (taiga) biome, and willow trees in a wetland biome (such as a marsh or riparian zone). Each tree species has adapted to thrive in its specific biome based on factors like temperature, precipitation, and soil conditions.
The kangaroo would be least like the others as it is the only one of this group of mammals which has a pouch. It is the only marsupial.
tundra
Above the tree line in the Rocky Mountains.
A non polar compound would be least likely to dissolve in water.
A biome with a salinity of 0.005 would likely be a freshwater biome, such as a river, lake, or stream. This low salinity level indicates a lack of significant dissolved salts or minerals commonly found in saltwater environments.
it depends on if the hawk went for the eyes or not but most likely a hawk