One unique feature of stratosphere is that it contains a layer of ozone gas, which protect us from the sun's rays.
The environment, the weather of the area, the amount of erosion, it can vary because of wind, water, or human interaction.
Answer:
there would be less birds.
Explanation:
If the population decreases the birds are dying. Therefore leaving the planet with less birds.
An ecological niche is an organism's specific habitat in an ecosystem.
It is where it lives and feeds, etc.
