A shopkeeper sells a badminton shuttle whose marked price is Rs 15, at a discount of 20% and gives a lollipop costing Rs 2.50 free with each shuttle. Even then he makes a profit of 25%. His cost price per shuttle is:

Tillage is mechanical manipulation of soil. Which type of tillage system left less than 15% of crop residue on soil surface?

Growing of two or more crops simultaneously on the same piece of land, without any definite row arrangement is known as

Bunchy top of banana, caused due to virus, is transmitted by

Plantation of high water consuming trees for withdrawal of groundwater is termed as

Which of the following method is most effective in conferring disease resistance among distantly related species?

Adiabatic dehumidification will lead ……………………….. in humidity and ……………. in temperature.

Loose smut of wheat is caused by

Proboscis in the mouthparts of the butterfly is formed from ____

What is/are the effects of heavy metals on soil?

Kyoto Protocol is an international treaty related to