The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as – (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth

The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as – (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth
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(1) Eutrophication Explanation: Eutrophication is the ecosystem response to the addition of artificial or natural substances, such as nitrates and phosphates, through fertilizers or sewage, to an aquatic system. One example is the 'bloom" or great increase of phytoplankton in a water body as a response to increased levels of nutrients.
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The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as : (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth

Description : The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as : (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth

Last Answer : Eutrophication

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

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

Last Answer : Eutriphication.

Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem? (a) Fish (b) Zooplankton (c) Frog (d) Phytoplankton

Description : Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem? (a) Fish (b) Zooplankton (c) Frog (d) Phytoplankton

Last Answer : (a) Fish

Pick up the correct statement from the following: (A) Phytoplankton contains photosynthetically active pigment (B) An increase of phytoplankton increases the back scattering in the green region (C) An increase of phytoplankton absorbs the bule region rapidly (D) An increase of phytoplankton decreases the back scattering in the green region

Description : Pick up the correct statement from the following: (A) Phytoplankton contains photosynthetically active pigment (B) An increase of phytoplankton increases the back scattering in the green region ( ... rapidly (D) An increase of phytoplankton decreases the back scattering in the green region

Last Answer : Answer: Option D

Addition oxcessive amounts of heat to a lake is referred to as - (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Description : Addition oxcessive amounts of heat to a lake is referred to as - (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Last Answer : (3) Thermal pollution Explanation: Thermal pollution is defined as the addition of excess of undesirable heat to water thereby making it harmful to man, animal or aquatic life. A common ... . The change in ambient temperature of water decreases oxygen supply and affects ecosystem com-position.

Addition oxcessive amounts of heat to a lake is referred to as : (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Description : Addition oxcessive amounts of heat to a lake is referred to as : (1) Refrigeration effect (2) Green House effect (3) Thermal pollution (4) Heat Bloom

Last Answer : Thermal pollution

The dominant second trophic level, in a lake ecosystem, is (a) phytoplankton (b) zooplankton (c) benthos (d) plankton.

Description : The dominant second trophic level, in a lake ecosystem, is (a) phytoplankton (b) zooplankton (c) benthos (d) plankton.

Last Answer : (b) zooplankton

Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)

Description : Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)

Last Answer : (1) Water hyacinth Explanation: Plants that are resistant to crude oil toxicity such as black poplar and willows, as well as miscanthus grass (elephant grass) have been found to ... oliefera seeds and Parthenium hysterophorus plants are effective for the removal of industrial p011utants in water.

Which of the following weeds has been found useful to check water pollution caused by industrial effluents? (1) Partheniurn (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2)

Description : Which of the following weeds has been found useful to check water pollution caused by industrial effluents? (1) Partheniurn (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2)

Last Answer : (4) Both (1) and (2) Explanation: Parthenium and Elephant grass are useful to check water pollution caused by industrial effluents.

Which of the following weeds has been found useful to check water pollution caused by industrial affluents? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above

Description : Which of the following weeds has been found useful to check water pollution caused by industrial affluents? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above

Last Answer : (3) Water hyacinth Explanation: Around the world, there is an increasing trend in areas of land, surface waters and groundwater affected by contamination from industrial, military and agricultural activities due to either ignorance, lack of vision, or carelessness.

Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)

Description : Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)

Last Answer : Both (2) and (3)

Which of the following weeds has been found useful to check water pollution caused by industrial affluents ? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above

Description : Which of the following weeds has been found useful to check water pollution caused by industrial affluents ? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above

Last Answer : Water hyacinth

Algal bloom results from – (1) Global warming (2) Salination (3) Eutrophication (4) Biomagnification

Description : Algal bloom results from – (1) Global warming (2) Salination (3) Eutrophication (4) Biomagnification

Last Answer : (3) Eutrophication Explanation: An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the ... body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.

Algal bloom results in a) Global warming b) Salination c) Eutrophication d) Biomagnification

Description : Algal bloom results in a) Global warming b) Salination c) Eutrophication d) Biomagnification

Last Answer : c) Eutrophication

Algal bloom results from (1) Global warming (2) Salination (3) Eutrophication (4) Biomagnification

Description : Algal bloom results from (1) Global warming (2) Salination (3) Eutrophication (4) Biomagnification

Last Answer : Eutrophication 

Which one of the following statements is not correct? (a) Offspring produced by the asexual reproduction are called clone. (b) Microscopic, motile, asexual reproductive structures are called zoospores. (c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem. (d) Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes.

Description : Which one of the following statements is not correct? (a) Offspring produced by the asexual reproduction are called clone. (b) Microscopic, motile, asexual reproductive structures are called zoospores. ( ... in the standing water, drains oxygen from water that leads to the death of fishes.

Last Answer : (c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.

The water in an open pond remains cool even in hot summer because (a) Of continuous evaporation of water (b) Water radiates heat more rapidly than the atmosphere (c) Water absorbs heat less rapidly than the atmosphere (d) Water absorbs heat more rapidly than the atmosphere

Description : The water in an open pond remains cool even in hot summer because (a) Of continuous evaporation of water (b) Water radiates heat more rapidly than the atmosphere (c) Water absorbs heat less rapidly than the atmosphere (d) Water absorbs heat more rapidly than the atmosphere

Last Answer : Ans:(c)

A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Description : A lake or pond community is also known as a: w) pelagic community (pron: pe-laj-ick) x) benthic community (pron: ben-thick) y) lentic community (pron: len-tick) z) lotic community (pron: lot-ick)

Last Answer : ANSWER: Y -- LENTIC COMMUNITY

Two major factors are changing the face of today’s communications. One of these factors is the fact that: A. Costs of promotion are rising. B. Mass markets are fragmented and marketers are shifting away from mass marketing. C. Global communications are not growing rapidly enough. D. Marcom managers have achieved more power and control.

Description : Two major factors are changing the face of today's communications. One of these factors is the fact that: A. Costs of promotion are rising. B. Mass markets are fragmented and ... Global communications are not growing rapidly enough. D. Marcom managers have achieved more power and control.

Last Answer : B. Mass markets are fragmented and marketers are shifting away from mass marketing.

Can a beaver survive without a lake or pond for water?

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Description : The curved body of water formed when a meandering river reshapes and cuts off one of its bends is called: w) an Essing pond x) an Oxbow lake y) a Swensen pool z) a Groovy pool

Last Answer : ANSWER: X -- AN OXBOW LAKE

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Description : What is the difference between a pond and a lake?

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When does a pond stop being a pond and become a lake?

Description : When does a pond stop being a pond and become a lake?

Last Answer : When it gets too big for it’s beaches ;)

Which lake or pond was your favorite to spend idle time at, whether fishing, skipping rocks or etc...

Description : Which lake or pond was your favorite to spend idle time at, whether fishing, skipping rocks or etc...

Last Answer : There was a place called Lost Lake in Hood River, Oregon. You could see Mt. Hood from there pretty well. Family trips aren’t as prevalent now, but we went there a lot in the summer. My mother and I would circle the lake looking for slamanders and just have great camp outs.

What is the difference between a pond and a lake?

Description : What is the difference between a pond and a lake?

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Nowhere in my condo docs does it list lake Pookiehatchee as a detention/retention pond. After Hurrican Charlie the lake association constructed a wood barrier. Three years later SWFWMD is demanding we put up a fence. Can they?

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Last Answer : If the lake is on private property, it is unclear as to how a municipal authority can order that it be fenced. You should contact the HOA for more details.

The upright pyramid of number is absent in (a) pond (b) forest (c) lake (d) grassland.

Description : The upright pyramid of number is absent in (a) pond (b) forest (c) lake (d) grassland.

Last Answer : (b) forest

Which ecosystem has the maximum biomass? (a) Grassland ecosystem (b) Pond ecosystem (c) Lake ecosystem (d) Forest ecosystem

Description : Which ecosystem has the maximum biomass? (a) Grassland ecosystem (b) Pond ecosystem (c) Lake ecosystem (d) Forest ecosystem

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Which ecosystem has the maximum biomass ? (1) Grassland ecosystem (2) Pond ecosystem (3) Lake ecosystem (4) Forest ecosystem

Description : Which ecosystem has the maximum biomass ? (1) Grassland ecosystem (2) Pond ecosystem (3) Lake ecosystem (4) Forest ecosystem

Last Answer : (4) Forest ecosystem

The upright pyramid of number is absent in (1) Grassland (2) Pond (3) Forest (4) Lake

Description : The upright pyramid of number is absent in (1) Grassland (2) Pond (3) Forest (4) Lake

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Draw Conventional symbol for i) Embankment ii) Pond or Lake iii) Tunnel iv) Compound Wall

Description : Draw Conventional symbol for i) Embankment ii) Pond or Lake iii) Tunnel iv) Compound Wall

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A pond contains clean water. Which of the following activities will produce least pollution of water? a) Washing clothes in the pond c)domestic waste b) industrial waste d)Swimming in the pond

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Last Answer : d)Swimming in the pond

Eutrophication is the process of enrichment of surface water bodies with — a. Minerals b. Nutrients c. Salts d. Vegetation

Description : Eutrophication is the process of enrichment of surface water bodies with — a. Minerals b. Nutrients c. Salts d. Vegetation

Last Answer : b. Nutrients

In North-East India, ______ is known to be the largest fresh-water lake. (1) Dal Lake (2) Chilika Lake (3) Loktak Lake (4) Tsomoriri Lake

Description : In North-East India, ______ is known to be the largest fresh-water lake. (1) Dal Lake (2) Chilika Lake (3) Loktak Lake (4) Tsomoriri Lake

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Which one of the following statement about lichens is wrong? (a) These grow very rapidly (2 cm per day). (b) They show fungal and algal symbiotic relationships. (c) Some of its species are eaten by reindeers. (d) These are pollution indicators.

Description : Which one of the following statement about lichens is wrong? (a) These grow very rapidly (2 cm per day). (b) They show fungal and algal symbiotic relationships. (c) Some of its species are eaten by reindeers. (d) These are pollution indicators.

Last Answer : (a) These grow very rapidly (2 cm per day).

A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

Description : A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due  to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of  nutrients (d) mortality of fish due to lack of oxygen.

Last Answer : (d) mortality of fish due to lack of oxygen.

A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

Description : A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.

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Description : Pulsars are : (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

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The temperature increases rapidly above – (1) Ionosphere (2) Exosphere (3) Stratosphere (4) Troposphere

Description : The temperature increases rapidly above – (1) Ionosphere (2) Exosphere (3) Stratosphere (4) Troposphere

Last Answer : (2) Exosphere Explanation: Above Troposphere, temperature increases rapidly with height in the Stratosphere layer as it houses the ozone layer which absorbs ultraviolet (UV) rays from the sun. Again ... Exosphere which is the uppermost layer of the atmosphere reaches up to more than 4500° Celsius.

Pulsars are – (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

Description : Pulsars are – (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars

Last Answer : (3) rapidly spinning stars Explanation: The word "pulsar" is a contraction of "pulsating star. A pulsar is formed when a massive star collapses exhausts its supply of fuel. It blasts out ... an object composed primarily of neutrons packed so tightly that they no longer exist as normal matter.

What is the best way to prune a rapidly growing variegated duranta shrub with a heavy central stem?

Description : What is the best way to prune a rapidly growing variegated duranta shrub with a heavy central stem?

Last Answer : Need Answer

Mention four effects of a rapidly growing population on development. -Geography

Description : Mention four effects of a rapidly growing population on development. -Geography

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Why is the tertiary sector growing so rapidly in India? -SST 10th

Description : Why is the tertiary sector growing so rapidly in India? -SST 10th

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Increase in population of a rapidly growing city, may be estimated by (A) Arithmetical mean method (B) Geometrical method (C) Incremental increase method (D) Graphical comparison method

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In a patient of pulmonary tuberculosis, pyrazinamide is most active on the following subpopulation of tubercle bacilli: A. Rapidly multiplying bacilli located on cavity walls B. Slow growing bacilli within macrophages and at sites showing inflammatory response C. Intermittently multiplying bacilli within caseous material D. Dormant bacilli

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What kind of stem can be seen in water hyacinth ?

Description : What kind of stem can be seen in water hyacinth ?

Last Answer : Offset stems can be seen in water hyacinth.

How to see water hyacinth flowers ?

Description : How to see water hyacinth flowers ?

Last Answer : Small and light in the form of water-pollinated flowers.

In what year was water hyacinth brought to Bangladesh ?

Last Answer : : In the late nineteenth century, an orchid-loving tourist liked water hyacinth flowers so much that he brought them with him when he came to this country from Brazil. Roar Bengali

Why water hyacinth floats in water ?

Last Answer : : There is a lot of air chamber between the stalk and leaves of Kachuri drink which is why it floats in water.