Because they dont want to kill the grass or the plants that they want. but only to kill the plants its meant for
The answer to your question is 2
Answer: It can decrease or increase a population of species.
Explanation: Limiting factors include the availability of food, water, shelter, and etc. When a population of species are limited in any of these, they either move or adapt to their environment. So, population tends to decrease. The population that may finds an abundance of resources will find that their numbers tend to increase. This cycle is repeated over and over again.
Hope this helps!!!
Answer: A. Speed
Explanation: Hope it Helps!