Why diatoms are used in filtration and polishing?

Why diatoms are used in filtration and polishing?
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Why diatoms are used in filtration and polishing?
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Polishing silver without silver polish?

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The luster of a metal is due to - (1) high polishing (2) high density (3) chemical inertness (4) presence of free electrons

Description : The luster of a metal is due to - (1) high polishing (2) high density (3) chemical inertness (4) presence of free electrons

Last Answer : (4) presence of free electrons Explanation: Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the Latin lux, meaning "light", and generally implies radiance, gloss, or brilliance.

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Description : The vitamin present in rice polishing is?

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Description : Explain electro polishing.

Last Answer : The article to be electro polished is taken as anode in the electrolytic bath with copper or lead cathode and a suitable electrolyte. When direct current is passed through the electrolyte, the ... the anode is electro polished. Ex: Sandwiched cookers are manufactured by the electro polishing method.

What is electro polishing?

Description : What is electro polishing?

Last Answer : Electro polishing is an electrochemical process that removes material from a metallic article. It is the reverse of electroplating.

Pollution by particulate matter emission in the atmosphere does not take place during metal (A) Grinding (B) Machining(C) Cutting(D) Polishing

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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

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The MAIN purpose of burnishing is: A. To help eliminating excess mercury (condensing) B. To condense margins C. Polishing of filling

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Give the uses of granite & marble polishing waste.

Description : Give the uses of granite & marble polishing waste. 

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Give any two uses of granite and marble polishing waste.

Description : Give any two uses of granite and marble polishing waste.

Last Answer : Use of granite and marble polishing waste. 1. It is used in manufacturing of brick and tiles 2. It is used for filling joints in flooring. 3. It is used in self-compacting concrete.

Which kind of organisms are the diatoms? -Do You Know?

Description : Which kind of organisms are the diatoms? -Do You Know?

Last Answer : answer:

$ In case of human beings, the process of focusing of an object by the eyes is called dioptric part. ! Diatoms are a type of Nektons.

Description : $ In case of human beings, the process of focusing of an object by the eyes is called dioptric part. ! Diatoms are a type of Nektons.

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$ In the cell wall of Dinoflagellates, there is present only one groove. ! Diatoms have two flagella.

Description : $ In the cell wall of Dinoflagellates, there is present only one groove. ! Diatoms have two flagella.

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In pond ecosystem, diatoms represent

Description : In pond ecosystem, diatoms represent

Last Answer : In pond ecosystem, diatoms represent A. Producers B. Primary consumers C. Secondary consumers D. Tertiary consumers

Why is light intensity a major factor in controlling the numbers of diatoms?

Description : Why is light intensity a major factor in controlling the numbers of diatoms?

Last Answer : can someone give me the answer. I don't have a bloody clue

What features did the cells you observed have in common How were they different - Bacillus Megaterium - Mixed Diatoms - Anaboena - Micrococcus Luteus - Hydra - Saccharomyces - Paramecium?

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Tiny marine animals which constitute limestone skeletons are called – (1) Clamitomonous (2) Foraminifera (3) Coral reefs (4) Diatoms

Description : Tiny marine animals which constitute limestone skeletons are called – (1) Clamitomonous (2) Foraminifera (3) Coral reefs (4) Diatoms

Last Answer : (3) Coral reefs Explanation: Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny animals found in marine waters that contain few ... reefs are built from stony corals, which in turn consist of polyps that cluster in groups.

Which is the reason for highest biomass in aquatic ecosystem? (a) Nano plankton, blue green algae and green algae (b) Sea grass and slime moulds (c) Benthic and brown algae (d) Diatoms

Description : Which is the reason for highest biomass in aquatic ecosystem? (a) Nano plankton, blue green algae and green algae (b) Sea grass and slime moulds (c) Benthic and brown algae (d) Diatoms

Last Answer : (c) Benthic and brown algae

Auxospores and hormogonia are formed, respectively, by (a) some diatoms and several cyanobacteria (b) some cyanobacteria and many diatoms (c) several cyanobacteria and several diatoms (d) several diatoms and a few cyanobacteria.

Description : Auxospores and hormogonia are formed, respectively, by (a) some diatoms and several cyanobacteria (b) some cyanobacteria and many diatoms (c) several cyanobacteria and several diatoms (d) several diatoms and a few cyanobacteria.

Last Answer : (d) several diatoms and a few cyanobacteria.

Select the wrong statement. (a) The walls of diatoms are easily destructible. (b) ‘Diatomaceous earth’ is formed by the cell walls of diatoms. (c) Diatoms are chief producers in the oceans. (d) Diatoms are microscopic and float passively in water.

Description : Select the wrong statement. (a) The walls of diatoms are easily destructible. (b) ‘Diatomaceous earth’ is formed by the cell walls of diatoms. (c) Diatoms are chief producers in the oceans. (d) Diatoms are microscopic and float passively in water.

Last Answer : (a) The walls of diatoms are easily destructible.

Which of the following organisms are known as chief producers in the oceans? (a) Dinoflagellates (b) Diatoms (c) Cyanobacteria (d) Euglenoids

Description : Which of the following organisms are known as chief producers in the oceans? (a) Dinoflagellates (b) Diatoms (c) Cyanobacteria (d) Euglenoids

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Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups (a) eubacteria and archaea (b) cyanobacteria and diatoms (c) protists and mosses (d) liverworts and yeasts.

Description : Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups (a) eubacteria and archaea (b) cyanobacteria and diatoms (c) protists and mosses (d) liverworts and yeasts.

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: ______ are marine protists that have chalky skeletons. a. diatoms b. foraminifera c. algae d. radiolarians

Description : : ______ are marine protists that have chalky skeletons. a. diatoms b. foraminifera c. algae d. radiolarians

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Which kind of organisms are the diatoms?

Description : Which kind of organisms are the diatoms?

Last Answer : Unicellular algae

Which of the following organisms are known as chief producers in the oceans ? (1) Dinoflagellates (2) Diatoms (3) Cyanobacteria (4) Euglenoids

Description : Which of the following organisms are known as chief producers in the oceans ? (1) Dinoflagellates (2) Diatoms (3) Cyanobacteria (4) Euglenoids

Last Answer : 2) Diatoms

What are Diatoms. Explain the identification methods of Diatoms and its specificity.

Description : What are Diatoms. Explain the identification methods of Diatoms and its specificity. 

Last Answer : Diatoms are a major group of eukaryotic algae, and are one of the most common types of phytoplankton. Most diatoms are unicellular, although some form chains or simple colonies. A characteristic feature of ... less silicized and have less resistance as compare to the fresh water diatoms.

For examination of diatoms sample should collect from (a). Bone marrow (b). Blood (c). Tissue (d). Epithelial cells

Description : For examination of diatoms sample should collect from (a). Bone marrow (b). Blood (c). Tissue (d). Epithelial cells 

Last Answer : Ans: (a). Bone marrow

If we were to completely eliminate one group of marine organisms from the ocean, which would most likely be fatal to marin fish populations? Elimination of: a) urchins b) diatoms (pron: DIE-a-toms) c) starfishes d) sea anemones (pron: a-NEM-a-nees)

Description : If we were to completely eliminate one group of marine organisms from the ocean, which would most likely be fatal to marin fish populations? Elimination of: a) urchins b) diatoms (pron: DIE-a-toms) c) starfishes d) sea anemones (pron: a-NEM-a-nees)

Last Answer : ANSWER: B -- DIATOMS

One-celled algae enclosed in minute two-part silic shells are called: a) dinoflagellates (pron: die-no-flaj-el-ates) b) coelenterates (pron: sell-en-ter-ates) c) annelids d) diatoms

Description : One-celled algae enclosed in minute two-part silic shells are called: a) dinoflagellates (pron: die-no-flaj-el-ates) b) coelenterates (pron: sell-en-ter-ates) c) annelids d) diatoms

Last Answer : ANSWER: D -- DIATOMS 

Tiny marine animals which constitute limestone skeletons are called (1) Clamitomonous (2) Foraminifera (3) Coral reefs (4) Diatoms

Description : Tiny marine animals which constitute limestone skeletons are called (1) Clamitomonous (2) Foraminifera (3) Coral reefs (4) Diatoms

Last Answer : Coral reefs