![subject](/tpl/images/cats/biologiya.png)
Biology, 31.07.2021 23:50 calvinsanchez8429
Why does the land around a once active coal mine remain barren?
A: Toxic nitrous oxides were released into the soil killing all plants.
B: C: Ozone is formed from hydrocarbons which prevent the growth of plants.
Please don't just take points. Thank you and have a good day
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 17:10
Question 17 (1 point) where does penicillin come from? a. it is a chemical that man invented b. it is a fungus c. it is a toxin made by other bacteria d. it was discovered in archaebacteria
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 17:50
To take a whiff of your favorite food, you use both? a. motor nerves and your digestive system b. sensory nerves and your immune system c. motor nerves and your skeletal system d. sensory nerves and your respiratory system
Answers: 2
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
Why does the land around a once active coal mine remain barren?
A: Toxic nitrous oxides were releas...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 26.06.2019 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 26.06.2019 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 26.06.2019 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.06.2019 19:00