Question

Read the following passage and answer the question :
In everyday life, pH plays an important role on daily basis like in gardening and farming. The best crops are usually obtained with neutral or slightly acidic soil (pH 6.5 to 7.0). Tooth decay starts when the pH of mouth is lower than 5.5. Bee sting leaves and acid which causes pain and irrigation.
ANSWER PLEASE ​

Answer 1

Answer:

4,3,1,2,1 respectively !