Question : The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as:

Option 1: eutrophication

Option 2: water bloom

Option 3: water pollution

Option 4: water hyacinth

Question : Which of the following places is well-known for the embroidery form of "Chikankari "?

Option 1: Hyderabad.

Option 2: Jaipur.

Option 3: Bhopal.

Option 4: Lucknow.

Question : Lake formed in a cut-off river, meander is called:

Option 1: Playa Lake

Option 2: Meteoric Lake

Option 3: Ox-Bow Lake

Option 4: Crater Lake

Question : In Indus Valley Civilisation, Dholavira is famous for which of the following?

Option 1: Rock cut architecture

Option 2: Sea port

Option 3: Water Conservation

Option 4: Pottery

Question : Hard water and soft water can be distinguished by using

Option 1: Dilute acid

Option 2: Ordinary soap

Option 3: Detergent

Option 4: Liquid soap