Description : What is the minimum amount of dissolved oxygen in pond water ?
Last Answer : Dissolved oxygen in pond water at least 5 m. Need to be grams / liter.
Description : What is the meaning of mineral salts dissolved in water and water together ?
Last Answer : Answer : Mineral salts dissolved in water and water together are called cytoplasm.
Description : Heavy water used in the nuclear reactors to slow down the speed of neutrons is (A) Highly purified water (B) A compound of oxygen and deuterium (C) Water having dissolved salts of heavy metals (D) None of these
Last Answer : (B) A compound of oxygen and deuterium
Description : The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in ... sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.
Last Answer : (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
Description : Ground water from artesian wells (A) Contains no suspended materials (B) Contains dissolved salts (C) May be saltish and hard (D) All the above
Last Answer : (D) All the above
Description : Eutrophication results in reduction of a) Dissolved nitrate b) Dissolved Oxygen c) Mineral salts d) Parasitic protozoa.
Last Answer : b) Dissolved Oxygen
Description : The surface of water in a pond remains cool even on a hot day because 1. water evaporates at the surface and evaporation causes cooling 2. the heat absorbed at the surface is transmitted downwards 3. Water in contact with the bottom ... /are correct? (a) 1 only (b) 3 only (c) 1 and 3 (d) 1, 2 and 3
Last Answer : Ans:(a)
Description : What is the value of pressure at the bottom of a pond depth of 1m ?
Last Answer : The depth of pressure at the bottom of a pond depth of 1m is 9800 Pa
Description : In a pond ecosystem, benthos means: (a) Zooplanktons on water surface (b) Large fishes eating small ones (c) Primary consumes in the bottom of a pond (d) All phytoplankton’s
Last Answer : Ans. ((c))
Description : The first solar pond has been setup in
Last Answer : Bhuj, in Gujarat.
Description : In a solar pond, heat is trapped in the pond by
Last Answer : addition of salts in the bottom of the pond
Description : First Asian country to establish a solar pond is
Last Answer : India.
Description : How is solar energy remains trapped in a solar pond?
Last Answer : When water is heated by solar radiation, hot water from the bottom of the pond rises and reaches the surface. It loses the heat gained to the atmosphere. This makes the water in the pond to remain at a temperature nearer to that of the atmosphere. The loss of heat is
Description : What is a solar pond?
Last Answer : Solar pond is a new technology in harnessing solar energy. It is a large scale solar collector with an integrated arrangement for storage of heat energy
Description : Is there pond pump equipment that uses solar energy?
Last Answer : Yes, there are solar pond pumps available. You can find them at Pond Depot (http://www.pondepot.com/solarpondpumps.html) or Foster and Smith Aquatics (http://www.fosterandsmithaquatics.com/pond-supplies/solar-pond-supplies/ps/c/5163/14783). Amazon.com also sells pond pumps.
Description : Are their solar powered pond filters?
Last Answer : Yes, in fact there are solar powered pond filters. This is a good idea to get, because it saves you money in the long run.
Description : A solar pond is a combination of : (A) Solar energy storage and heat collection (B) Solar energy collection and heat storage (C) Solar energy collection and energy storage (D) All the above
Last Answer : A solar pond is a combination of : Solar energy collection and heat storage
Description : On opening the soda water bottle the dissolved CO2 comes out, would the pH of the solution increase or decrease as the gas comes out? Give reason.
Last Answer : Answer. The pH of soda water increases. Because soda contains carbonic acid which is the weak one. When CO2 escape the carbonic acid’s strength weakens and therefore pH would increases.
Description : The major role of fluorpar (`CaF_2` ) which added in small quantities in the electrolyte reduction of alumina dissolved in fused cryolite `(N_(3)AlF_(
Last Answer : The major role of fluorpar (`CaF_2` ) which added in small quantities in the electrolyte reduction ... the rate of oxidation of carbon at the anode
Description : The major role of flourspar, `CaF_(2)` which is added in small amount in the electrolytic reduction of `Al_(2)O_(3)` dissolved on fused cryolite in fu
Last Answer : The major role of flourspar, `CaF_(2)` which is added in small amount in the electrolytic reduction ... the rate of oxidation of carbon at the anode
Description : What is the reason for the hot water and cold water of the pond ?
Last Answer : We know that rain water is very cold. The water in the pond absorbs the heat of the sun. So when the cold rain water falls in the pond, there is a combination of heat between the pond water and the rain water. So the water in the pond gets hot and the rain water gets cold.
Description : Assertion: In acute constipation, purgative containing magnesium salts are generally used. Reason: The osmotic effect of `Mg^(2+)` in the intestinal l
Last Answer : Assertion: In acute constipation, purgative containing magnesium salts are generally used. Reason: The osmotic ... `Mg^(2+)` is absorbed very slowly
Description : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . Reason : The blastocyst , along with zona pel
Last Answer : Assertion : Zona pellucida is glycoproteinous in nature and dissolved during the event of implantation . ... . If both Assertion & Reason are False.
Description : Alkaline metals when dissolved in ammonium (NH3) act as better conductor and better reducing agent what is the reason behind it ?
Last Answer : Due to formation of solvated or Ammoniated electrons
Description : What role does individualism and dislike of government interference play for dragging the United States to the bottom in terms of life expectancy over the past 30 years?
Last Answer : Look at the obesity levels and the violence in the US. Two really big factors.
Description : Triple tops & triple bottom are indicators of …. a. role reversal b. trend reversal c. both a & b d. high volumes
Last Answer : Answer:c
Description : How is wind energy from solar energy? OR Give reason: Wind energy is the converted from of solar energy
Last Answer : The differential heating of the atmosphere by the sun causes air movement and produces wind. Thus wind energy is converted from of solar energy.
Description : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two different oxioacids of chlorine, P and Q, r
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of ... `H_3PO_2` D. `SOCl_2 , PCl_5` and `H_3PO_5`
Last Answer : The reactions of `CI_(2)` gas with cold-dilute and hot-concentrated NaOH in water give ... porchloric acids D. (D) chloric and hypochlorus acids
Description : Some salts although containing two different metallic elements give test for one of them in solution Such salts are :
Last Answer : Some salts although containing two different metallic elements give test for one of them in solution Such ... . double salts C. normal salt D. none
Description : Give reasons : A. Ga^(3+) salts are better reducing agent while Tl^(3+) salts are better oxidising agent.
Last Answer : Give reasons : A. Ga3+ salts are better reducing agent while Tl3+ salts are better oxidising agent. B. PbCl4 is less stable than PbCl2
Description : Benedict’s test is less likely to give weakly positive results with concentrated urine due to the action of (A) Urea (B) Uric acid (C) Ammonium salts (D) Phosphates
Last Answer : B
Description : Which of the following complications of TPN are appropriately managed with the listed treatment? a. Air embolism-place patient in reverse Trendelenburg and the left lateral decubitus position ... dioxide retention-decrease glucose calories and replace with fat d. Line sepsis-intravenous antibiotics
Last Answer : Answer: b, c A number of complications of TPN can occur which can be divided into three types: mechanical, metabolic, and infectious
Description : I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth I am dissolved into air.Who am I? -Riddles
Last Answer : I am Smoke.
Description : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water to give strongly acidic solution. The gas also gives dense
Last Answer : A pungent smelling gas X after being dried by concentrated `H_2SO_4` was dissolved in water ... `CO_2` from the solution of sodium hydrogencarbonates.
Description : `Br_(2)` dissolved in `CS_(2)` reacts with phenol at 273 K to give ..... as the major product
Last Answer : `Br_(2)` dissolved in `CS_(2)` reacts with phenol at 273 K to give ..... as the major ... . m-Bromophenol C. p-Bromophenol D. 2,4,6-Tribromophenol
Description : Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is..
Last Answer : Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The ... acid is.. A. 2 B. 3 C. 1 D. Zero
Description : 28. Which one of the following statements regarding photochemical smog is not correct? (1) Photochemical smog does not cause irritation in eyes and throat (2) Carbon monoxide does not ... agent in character (4) Photochemical smog is formed through photochemical reaction involving solar energy.
Last Answer : Photochemical smog does not cause irritation in eyes and throat
Description : The tail of a comet always points away from the sun due to (a) force of repulsion (b) centrifugal force (c) solar radiation and solar wind (d) an unknown reason
Last Answer : Ans:(c)
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
Description : A pond looks shallow is due to?
Last Answer : Refraction of light
Description : Assertion: Tropical regions are more diversity-rich in comparison to temperate areas. Reason: Availability of more solar energy directly affects the p
Last Answer : Assertion: Tropical regions are more diversity-rich in comparison to temperate areas. Reason: Availability of ... Reason are false, then mark (4).
Description : Solar energy has not yetbeen used on a large scale for one simple reason: it is a. Too expensive. b. Too cheap. c. Not much available. d. All of the above.
Last Answer : a. Too expensive.
Description : Is a marshy swampy pond a problem?
Last Answer : Is the water totally stagnant? How does it get filled? What is the water source? Is it full all year? Fish can eat the algae, But, they need aeration. A healthy pond will exchange 10% of its water ... exactly what your pond needs at any given moment. (I hate them because they are always right.) :-)
Description : What is the difference between a pond and a lake?
Last Answer : Gallons
Description : How do fish in a small pond (or anywhere for that matter) survive?
Last Answer : I am no expert in this area, but here is what I thought of. Unlike your goldfish pond, ponds in the wild have a variety of organisms that provide stability. They are small ecosystems. The waste ... could be a source of nutrients, and streams that take water out of the pond could help remove debris.
Description : If you dig out a small pond how does it fill up with fish?
Last Answer : You have to stock it with fish yourself. Wild ducks might find it if you live in an area with a roving duck population.
Description : Do you have a mental file on each Jellyfish in the pond?
Last Answer : Not everyone – just you, @KNOWITALL ! :-) Seriously, I am just pretty good at keeping people on here straight by connecting the dots – and being on here a lot. Sometimes I totally forget someone who hasn’t been around much.
Description : Will the UV light from a bug zapper placed over my pond hurt the frogs' eyes?
Last Answer : No. The sun’s UV rays have never hurt frogs and I doubt the frogs would be staring directly at the UV light anyway…
Description : Will filtering my pond with a 1 micron filter be unhealthy for my fish?
Last Answer : I can't imagine how it would be unhealthy. I also would be shocked if you're able to filter it to the degree that it was bad for them. I suppose it depends on the species of fish. When I took ... aquariums I filtered them until the water was as clear as the glass and the fish did not seem to mind.