What is the river near your hometown?
Whether the heavy mental pollution of the river mentioned above is serious or not
serious
a little serious
not serious
Do you know there is any chance that drinking water can be polluted by heavy mental?
Have you ever invested the reason why the river was polluted by heavy mental?
Is there any heavy-mental-pollution events happened in your hometown?
Which method do you think is better to solve the heavy mental pollution according to your knowledge?
physics
chemistry
biology
Have your teacher ever taught you about the knowledge of heavy mental pollution?
Is there anyHeavy metal poisoning events happened to people around you?
Do you know about the policy of prevention of heavy metal pollution?
Do you know that there are chances that heavy mental can be accumulated in the food we eat?
Do you know aboutSynthetic biology?
Whichfields would you like us to solve the problem it is faced by our technology?