The soil organisms are
Harmful to the plants growing in the soil
Useful to plants growing in the soil
Neither harmful nor useful to plants growing in the soil
Both harmful as well as useful to plants growing in the soil
A person at $15000$ feet above sea level develops certain symptoms in $8-24 $ hours, these are
How many number of pairs are correct?
$(1)$ Aves - eurythermal
$(2)$ Mammals - stenothermal
$(3)$ Amphibia - stenothermal
$(4)$ Reptile - eurythermal
Altitude sickness which includes nausea, fatigue and heart palpitations occurs due to
Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to
Emergent land plants that can tolerate the salinities of the sea are called.