I’m pretty sure it’s tree roots :)
Answer: A!
Explanation: All biological organisms play a part in the earth's ecosystem, but consumers get energy from eating other organisms and producers make energy on their own. Grass is a producer, a self-sustaining organism that obtains its energy from the sun. In the process, it introduces new organic substances into the food chain and plays a key role for consumers. Grass forms the basis of the food chain because of this ability.
Answer is a. therapeutic communities.
Therapeutic communities are a common form of long-term residential treatment for substance use disorders. These communities provide drug-free environments in which people with addictive problems live together in an organized and structured manner to promote change toward recovery and re-socialization. Some such groups evolved into self-supporting and democratically run residences to support abstinence and recovery from drug use.
Answer: It is essential to reduce the making of paper due to drastic problems like the buisness there is in deforestation that has a negative effect in the produce of oxygen by the other hand, we currently live in a generation where we can reduce the use of paper by saving information in electronical devices that can almost save unlimited information
