Which is a threat to environment?

Question: Which is a threat to environment?

There are many threats to our environment. Such as 1 not stopping and promoting the amount of pollution in our environment and the factors that pollute it. 2 There is a continuous increase in the population of people, so that there is less land for their maintenance and their subsistence. 3 Continuous use of man-made machines, due to which the possibility of pollution remains very high, such as pollution from vehicles and factory installed machines is causing a lot of pollution to our environment.