Question : Salination of soil is caused by

Option 1: Pesticides

Option 2: Soil erosion

Option 3: Excess irrigation

Option 4: Crop rotation

Question : The sideways erosion that widens the river valley is called

Option 1: lateral erosion

Option 2: vertical erosion

Option 3: side erosion

Option 4: mean erosion

Question : Hydraulic Action is a type of erosion caused by

Option 1: Running water

Option 2: Wind 

Option 3: Glacier

Option 4: None of these.

Question : Red rot is a disease caused by which of the following plants?

Option 1: Paddy

Option 2: Sugarcane

Option 3: Mustard

Option 4: Wheat

Question : Which of the following diseases is caused by female Anopheles mosquito?

Option 1: Chicken Pox

Option 2: Malaria

Option 3: Black Fever

Option 4: Cholera