Which of the following biosphere reserves is the eleventh bioreserve included in the UNESCO's World Network of Biosphere Reserves?

The Volga Waterway, that drains into the Caspian Sea, is located in which of the following country ?

Arrange the following lengths of Indian territory in increasing order:

A. Length of Indian Coastline

B. Length of land frontier

C. Border Length of Bhutan

D. Border Length of Nepal

Choose the correct answer from the options given below:

Which among the following states of India DOES NOT share its border with Bhutan?

(A) Tripura

(B) Manipur

(C) Mizoram

(D) Arunachal Pradesh

Choose the correct answer from the options given below:

The Hawaii Volcanoes national park contains which of the following most active volcanoes in the world?

Clouds are the masses of small water droplets or tiny ice crystals.

(A) Clouds are classified according to their appearance and height.

(B) Cirrus clouds are high altitude clouds, which are usually feathery shaped and composed entirely of ice crystals.

(C) Nimbostratus clouds are mid level clouds producing sporadic rain.

(D) Altocumulus are the heap-like clouds having flat bases and rounded tops.

Choose the correct answer from the options given below:

Which river is common to Budapest, Belgrade and Vienna?