The release of which fish into ponds and wells helps in controlling the mosquitoes? —

1 Answer

Answer :

Gambusia fish

Related questions

Description : The release of which of the following into ponds and wells helps in controlling mosquitoes? (1) Snaii (2) Crab (3) Dogfish (4) Gambusia fish

Last Answer : (4) Gambusia fish Explanation: The Gambusia fish, also known as mosquito fish, feeds on the larvae of mosquitoes. So it helps in controlling their population. Mosquito fish were ... to lower mosquito populations which in turn negatively affected many other species in each distinct bioregion.

Description : The release of which fish into ponds and wells helps in controlling the mosquitoes? —

Last Answer : Gambusia fish

Description : The release of which of the following into ponds and wells helps in controlling mosquitoes? (1) Snail (2) Crab (3) Dogfish (4) Gambusia fish

Last Answer : Gambusia fish

Description : Consider the following statements: 1. Malaria can be contained with the introduction of larvicidal fish, gambusia, in ponds, tanks and puddles. 2. Gambusia is highly specific in devouring larvae of female anopheline mosquitoes. Which ... true? (a) 1, 2 (b) 1 only (c) 2 only (d) Neither of the two

Last Answer : Ans:(b)

Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : In how many ways can 15 indistinguishable fish be placed into 5 different ponds, so that each pond contains at least one fish ? (A) 1001 (B) 3876 (C) 775 (D) 200

Last Answer : (A) 1001

Last Answer : 56 percent of the fish produced comes from ponds in Bangladesh.

Last Answer : International Full Policy Research Institute (IFPRI), an international organization on food policy.

Description : The fish used in the control of mosquitoes is

Last Answer : Gambusia.

Description : Fish which can be used in biological control of mosquitoes/larvicidal fish is (a) Eel (b) carp (c) cat fish (d) Gambusia

Last Answer : (d) Gambusia.

Description : A drug which helps in controlling fever is (1) Ibuprofen (2) Penicillin (3) Paracetamol (4) Corticosteroid

Last Answer : (3) Paracetamol Explanation: Paracetamol is a widely used over-the-counter analgesic (pain reliever) and antipyretic (fever reducer). The World Health Organization (WHO) recommends that paracetamol only be used to treat fever in children if their temperature is greater than 38.5 °C.

Description : Sometimes water is sprayed during coal charging in the coke oven, which helps in (A) Prevention of clinker formation in the oven (B) Controlling the dust nuisance while charging the coal (C) Reducing the cracking of hydrocarbons in ... represented by C + H2O = CO + H2 ) (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Pick out the correct statement. (A) Deforestation helps in controlling the green house effect (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone ( ... natural source of production of SO2 & H2S pollutant (D) Sulphur dioxide causes death by asphyxiation

Last Answer : (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone

Description : Deaeration of water in its treatment is necessary, as it (A) Minimises its turbidity (B) Helps in controlling its taste and odour (C) Minimises its corrosiveness (D) None of these

Last Answer : (C) Minimises its corrosiveness

Description : Opportunity cost helps in: A. Ascertainment of cost B. Controlling cost C. Making managerial decisions D. Fixing selling price

Last Answer : C. Making managerial decisions

Description : A drug which helps in controlling fever is (1) Ibuprofen (2) Penicillin (3) Paracetamol (4) Corticosteroid

Last Answer : Paracetamol

Description : Ponds can be divided into how many parts based on water stability ?

Last Answer : Ponds can be divided into two parts based on water stability.

Description : How Many home cleaning products contain phosphates. If wastewater containing excess phosphates drains into a pond the phosphates encourage the growth of algae. How might this change in a pond's ecosys?

Last Answer : other water plants might have less light to help them grow, some algae produce toxins, so the water could be poisoned, fish, like carp, that eat algae will have more food.

Description : Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes (A) Foaming (B) Odour nuisances (C) Undesirable plant growth (D) Turbidity

Last Answer : (C) Undesirable plant growth

Description : How does rainy weather affect ponds?

Last Answer : Depending on your soil heavy rain may produce runoff, and drain into the pool or raise the water table, which raises the water level in your pond. Dry weather does just the opposite. Oh, I forgot on the earlier question: Welcome to fluther.

Description : What is the slimy green patches in ponds or in stagnant water? -Biology

Last Answer : These are generally formed by growth of organisms called algae.

Description : in many places how can drinking from rivers and ponds affect a persons health?

Last Answer : Water in rivers, ponds, lakes are polluted. They can haveparasites, animal waste, oil, human waste, pollution from upstreamindustry, dumping of chemicals , and a million other things.

Description : Can Boys Use Ponds White Beuty Cream ?

Last Answer : Can't use no. This cream is only suitable for girls.

Last Answer : 3 types of ponds.

Description : Liberation of `H_(2)S`/foul smell in water of tanks, ponds, etc is due to

Last Answer : Liberation of `H_(2)S`/foul smell in water of tanks, ponds, etc is due to A. Anaerobiosis B. Aerobiosis C. Psammophytes D. Biological magnification

Description : Is 4000 ponds greater than 2 tons?

Last Answer : 4000 pounds = 2 tons

Description : How can drinking from most rivers and ponds affect a person's health?

Last Answer : It contains poisonous chemicals that imperils your lives.

Description : What is the difference between streams and rivers and ponds and lakes?

Last Answer : Streams and rivers flow down a long path and ponds and lakesstay in one place and not flowing like streams and rivers.

Description : What is grater 5 tons or 12000 ponds?

Last Answer : 5 tons

Description : How does physical topography of the area made easy to construct the ponds?

Last Answer : What is the answer ?

Description : How can drinking from rivers and ponds affect a persons health?

Last Answer : It contains poisonous chemicals that imperils your lives.

Description : What hull type is best used on ponds?

Last Answer : Need answer

Description : What is the benefit of ponds filters?

Last Answer : There are many benefits of using pond filters. For one it will filter out all the bacteria that causes algae in ponds and it will make it a better living environment for the animals living in the pond.

Description : The largest reservoir of fresh water is : (1) Glaciers (2) Ground Water (3) Ponds (4) Lakes

Last Answer : (1) Glaciers Explanation: The largest water reservoir is the ocean, containing 97.3% of all water on Earth. Only 2.8 % of all the water on Planet Earth is fresh water. Three-quarters of all ... ice is the second largest reservoir of water on Earth and the largest reservoir of fresh water on Earth!

Description : Assertion A. : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other ... of A C. A is true but R is false D. A is false but R is true

Last Answer : ANS: A

Description : Amphibians lay their eggs in ponds and slow moving streams

Last Answer : Amphibians lay their eggs in ponds and slow moving streams

Description : If all ponds and puddles are destroyed, the organism likely to be destroyed is (a) Leishmania (b) Trypanosoma (c) Ascaris (d) Plasmodium.

Last Answer : (d) Plasmodium.

Description : Aerobic biological oxidation ponds used for the purification of polluted water (A) Destroys/removes pathogen from the sewage (B) Is not very effective for non-biodegradable substances (e.g. ABS) containing effluents (C) ... much more effectively if the sewage is chlorinated (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. (A) 1 to 2 (B) 4 to 5 (C) 9 to 10 (D) 15 to 20

Last Answer : (B) 4 to 5

Description : Biological oxidation ponds remove organic matters present in the polluted water by (A) Using the activities of bacteria and other micro organisms (B) Aerobic oxidation (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

Description : Lagoons used for purification of polluted water (A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds (B) Use micro-organisms/bacteria in presence of dissolved oxygen (C) Gives an ... 1 mg/litre and BOD = 3.8 mg/litre (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : Most important source of water for public water supply, is from (A) Lakes (B) Ponds (C) Streams (D) Rivers

Last Answer : (D) Rivers

Description : Pick up the incorrect statement from the following. The source of surface water is from  (A) Streams and rivers  (B) Storage reservoirs  (C) Springs  (D) Ponds and lakes 

Last Answer : (C) Springs 

Description : How fishes remain alive under frozen water (ice) ponds?

Last Answer : When water freezes into ice, the empty spaces are left between water molecules, due to hydrogen bonding. So as a result ice becomes lighter then water and start floating on surface of water. It is also non-conductor of heat, so water beneath it doesn’t freezes and fishes remain alive under it.

Description : What type of cooling system is used in the large power plants? a. Cooling ponds b. Natural flow system c. Cooling towers d. Single deck system

Last Answer : c. Cooling towers

Description : What type of cooling system is used in the large power plants? A] Cooling ponds B] Natural flow system C] Cooling towers. D] Single deck system

Last Answer : C] Cooling towers.

Description : Deep ponds, in which oxygen is absent except, perhaps, across a relatively thin surface layer, are called : (a) Aerobic ponds (b) Anaerobic ponds (c) Facultative ponds (d) Polishing ponds

Last Answer : (b) Anaerobic ponds

Description : Which of the following energy technologies is not utilized for power generation today? w) Nuclear Fission x) Solar Ponds y) Geothermal Power z) Nuclear Fusion

Last Answer : ANSWER: Z -- NUCLEAR FUSION

Description : The largest reservoir of fresh water is : (1) Glaciers (2) Ground Water (3) Ponds (4) Lakes

Last Answer : Glaciers

Description : After you release a fish, what happens to the hook wound?

Last Answer : It closes after some time. As for hooks that stay in, they oxidize and fall out.