Tag: chemistry
Questions Related to chemistry
Identify the radioactive pollutants from the following which affects the soil fertility.
Repeated cultivation of the same crop increases soil fertility.
Which soil horizon contains humus?
Afforestation is necessary for:
Which of the following is a sink for CO?
Which type of rain can cause soil pollution?
Which element is used in the preparation of pesticides ?
How industrial effluents effects soil pollution?
Negative soil pollution is:
Afforestation and reforestation is a measure mainly to control _________.