The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as –

Related MCQs

• In an iceberg floating in the sea, out of 10 parts of its mass, how much will remain above the surface of the water?
• A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
• The stagnant water at the bottom of a lake is called –
• The temperature increases rapidly above –
• The sphere of living matter together with water, air and soil on the surface of the earth is known as –
• Which type of lake is formed by volcanic activities?
• Which type of lake is formed by volcanic activities?
• Lake formed in a cut off river, meander is called:
• Two seas or water-bodies connected by a narrow stretch of water is known as a –
• How much of world's surface is covered by water?