Estuaries are among the most productive ecosystems in the world. What could be a possible reason?

1) Some estuaries forms an ecotone of freshwater and salty seawater.

2) Estuaries are not subject to disturbing forces like tides and waves.

Which of the above is/are correct?

Which of the following can be best characterized as a “biome”?

With reference to Peatlands, consider the following statements.

1) Peatlands are wetlands that contain mixture of decomposed organic material.

2) Peatlands often lack oxygen as they are partially submerged in layer of water.

3) If they are drained, their high carbon content makes them vulnerable to incineration.

Select the correct answer using the codes below.

Consider the following statements. Sacred groves

1) Are pristine stretches of forests that must be registered under National parks

2) Have been left untouched by the local tribals as any interference with them is banned by the local community

Which of the above is/are correct?

Consider the following about the Velds.

1) Velds have a mild climate due to the influence of the Pacific Ocean.

2) Velds receive rainfall mainly in the winter months due to the cold ocean currents washing its shores.

Which of the above is/are correct?