<h2>It contains toxins</h2><h2>It killed off bird populations.</h2><h2>It caused harm to human populations.</h2>
Explanation:
Let us understand the term DDT
DDT : Dichlorodiphenyltrichloroethane
- This is a crystalline chemical compound
- Basically used for protecting insects eating crops
- It is colorless, odorless, tasteless
- Initially used as pesticides
It killed off bird populations: Though it does not kill birds directly by consuming, it has indirectly damaged the egg by making the egg's shell too thin which gets broken easily.
It controlled diseases like malaria: Since this option talks about positive attribute of DDT, this option stands invalid. This chemical compound controls mosquitoes attacking the crop.
It caused harm to human populations: DDT causes vomiting, tremors or shakiness, and seizures
It contained toxins: It contains moderate toxins.
Answer:
Heme group carries oxygen
Explanation:
Answer:
the TDaP vaccine and the MMR vaccine
Explanation:
2 vaccines that help prevent 3 diseases at the same time. the TDaP is a vaccine to prevent Diptheria, Tetanus, and Pertussis. the MMR vaccine is another vaccine that prevents Measles, Mumps, and Rubella all at once as well. i hope this helps :D
P.S. also i will put a screenshot here for you so you can use it for future reference :D
D because I done that lol
