Process by which insecticides like DDT reach man is

Process by which insecticides like DDT reach man is
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Process by which insecticides like DDT reach man is A. Bioaccumulation B. biomagnification C. Bioremediation D. Eutrophication.
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Benzene is used (A) As a motor fuel (B) As an explosive (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) As a perfume

Description : Benzene is used (A) As a motor fuel (B) As an explosive (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) As a perfume

Last Answer : (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) A

Pick out the wrong statement. (A) DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction (B) Chloral is obtained by the chlorination of ethyl alcohol (C) Insecticides acting on the insects through the respiratory system are called fumigants (D) Benzene hexachloride is not a contact insecticide

Description : Pick out the wrong statement. (A) DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction (B) Chloral ... through the respiratory system are called fumigants (D) Benzene hexachloride is not a contact insecticide

Last Answer : (D) Benzene hexachloride is not a contact insecticide

Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Description : Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Last Answer : (4) understanding the delicate balance in the relative number of organisms Explanation: Ecological balance is a state of dynamic equilibrium within a community of organisms in which genetic ... this balance, the delicate balance between the organisms constituting and ecosystem should be understood.

Man can maintain an ecological balance in the biosphere by (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Description : Man can maintain an ecological balance in the biosphere by (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Last Answer : understanding the delicate balance in the relative number of organisms

Insecticides usually act upon

Description : Insecticides usually act upon

Last Answer : Insecticides usually act upon A. Muscular system B. Digestive system C. Nervous system D. Circulatory system .

Fertilizers, pesticides and insecticides may causes

Description : Fertilizers, pesticides and insecticides may causes

Last Answer : Fertilizers, pesticides and insecticides may causes A. air pollution B. water pollution C. Both A and B D. None of the above

What is the tense of verb in this sentence the insecticides are releasing poison?

Description : What is the tense of verb in this sentence the insecticides are releasing poison?

Last Answer : present progressive

Phthalic anhydride is used (A) In making PVC (B) As plasticisers (C) In insecticides manufacture (D) For making nylon-6

Description : Phthalic anhydride is used (A) In making PVC (B) As plasticisers (C) In insecticides manufacture (D) For making nylon-6

Last Answer : (B) As plasticisers

Mixing of light fine powder such as insecticides is done by (A) Banbury mixer (B) Pug mill (C) Impact wheels (D) Kneader

Description : Mixing of light fine powder such as insecticides is done by (A) Banbury mixer (B) Pug mill (C) Impact wheels (D) Kneader

Last Answer : (C) Impact wheels

Name two insecticides?

Description : Name two insecticides?

Last Answer : DDT; BHC

Chemical used to kill rats and mice are ? A. Insecticides B. Rodenticides (Answer)

Description : Chemical used to kill rats and mice are ? A. Insecticides B. Rodenticides (Answer)

Last Answer : B. Rodenticides (Answer)

. One of the major difficulties in the biological control of insect pest is that (a) the method is less effective as compared with the use of insecticides (b) the practical difficulty of introducing the predator to specific areas (c) the predator develops a preference to other diets and may itself become a pest (d) the predator does not always survive when transferred to a new environment.

Description : . One of the major difficulties in the biological control of insect pest is that (a) the method is less effective as compared with the use of insecticides (b) the practical difficulty of introducing ... become a pest (d) the predator does not always survive when transferred to a new environment.

Last Answer : (d) the predator does not always survive when transferred to a new environment.

Which of the following insecticides may be recommended for the control of termites? (A)Chlorpyriphos (B) Nimbicidine (C) Dimethonate (D) Methyl- 0 – demetone

Description : Which of the following insecticides may be recommended for the control of termites? (A)Chlorpyriphos (B) Nimbicidine (C) Dimethonate (D) Methyl- 0 – demetone

Last Answer : (A)Chlorpyriphos

Insecticides are specific inhibitors of— (A) Excretory system (B) Digestive system (C) Nervous system (D) Blood Circulatory system

Description : Insecticides are specific inhibitors of— (A) Excretory system (B) Digestive system (C) Nervous system (D) Blood Circulatory system

Last Answer : (D) Blood Circulatory system

The chemical, which is used for controlling the mites, is known as – a) Fungicides b) Mematicides c) Acaricides d) Insecticides

Description : The chemical, which is used for controlling the mites, is known as – a) Fungicides b) Mematicides c) Acaricides d) Insecticides

Last Answer : b) Mematicides

The chemical, which is used for controlling the mites, is known as – a) Fungicides b) Mematicides c) Acaricides d) Insecticides

Description : The chemical, which is used for controlling the mites, is known as – a) Fungicides b) Mematicides c) Acaricides d) Insecticides

Last Answer : b) Mematicides

Naphthalene recovered from coke oven gas is used (A) As moisture proof coating on fibres(B) As moth balls (insecticides)(C) As a fuel in furnaces(D) For making electrodes

Description : Naphthalene recovered from coke oven gas is used (A) As moisture proof coating on fibres (B) As moth balls (insecticides) (C) As a fuel in furnaces (D) For making electrodes

Last Answer : (C) As a fuel in furnaces

Naphthalene is used for making (A) Insecticides (e.g. moth balls) (B) Unsaturated polyesters (C) Drug intermediates e.g. β-naphthol (D) All (A), (B) and (C)

Description : Naphthalene is used for making (A) Insecticides (e.g. moth balls) (B) Unsaturated polyesters (C) Drug intermediates e.g. β-naphthol (D) All (A), (B) and (C)

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

Hard pitch is used for making (A) Pulverised fuel (B) Perfumes (C) Insecticides (D) Plastics

Description : Hard pitch is used for making (A) Pulverised fuel (B) Perfumes (C) Insecticides (D) Plastics

Last Answer : (A) Pulverised fuel

Systemic insecticides (A) Are absorbed throughout the plant (B) Kill insects following external bodily contact (C) Are stomach poisons (D) Emit poisonous vapour

Description : Systemic insecticides (A) Are absorbed throughout the plant (B) Kill insects following external bodily contact (C) Are stomach poisons (D) Emit poisonous vapour

Last Answer : (A) Are absorbed throughout the plant

. Fumigant insecticides (A) Kill insects, when they eat it (B) Emit poisonous vapour (C) Are absorbed throughout the plant (D) None of these

Description : . Fumigant insecticides (A) Kill insects, when they eat it (B) Emit poisonous vapour (C) Are absorbed throughout the plant (D) None of these

Last Answer : (B) Emit poisonous vapour

Phthalic anhydride is used (A) In making PVC (B) As plasticisers (C) In insecticides manufacture (D) For making nylon-6

Description : Phthalic anhydride is used (A) In making PVC (B) As plasticisers (C) In insecticides manufacture (D) For making nylon-6

Last Answer : (B) As plasticisers

A mixture of chlorine & sodium bromide acts as a/an (A) Insecticides (B) Analgesic drug (C) Fire retardant (D) Hydrogenation catalyst

Description : A mixture of chlorine & sodium bromide acts as a/an (A) Insecticides (B) Analgesic drug (C) Fire retardant (D) Hydrogenation catalyst

Last Answer : (C) Fire retardant

Application of insecticides to control ………….. a. Weeds c. Disease b. Insect Pest d. Plant

Description : Application of insecticides to control ………….. a. Weeds c. Disease b. Insect Pest d. Plant

Last Answer : Insect Pest

Drug metabolism can be induced by the following factors except: A. Cigarette smoking B. Acute alcohol ingestion C. Exposure to insecticides D. Consumption charcoal broiled meat

Description : Drug metabolism can be induced by the following factors except: A. Cigarette smoking B. Acute alcohol ingestion C. Exposure to insecticides D. Consumption charcoal broiled meat

Last Answer : B. Acute ******* ingestion

Drug metabolism can be induced by the following factors except: A. Cigarette smoking B. Acute alcohol ingestion C. Exposure to insecticides D. Consumption charcoal broiled meat

Description : Drug metabolism can be induced by the following factors except: A. Cigarette smoking B. Acute alcohol ingestion C. Exposure to insecticides D. Consumption charcoal broiled meat

Last Answer : B. Acute alcohol ingestion

Has DDT saved more lives than any other chemical compound?

Description : Has DDT saved more lives than any other chemical compound?

Last Answer : Water is a chemical compound (H2O). I would have to put that ahead of DDT, any day.

What is the full form of 'DDT' ? -How To ?

Description : What is the full form of 'DDT' ? -How To ?

Last Answer : The full form of 'DDT' is Dichlore-diphenyl-trichlore-ethane

Why did the United States ban the use of DDT?

Description : Why did the United States ban the use of DDT?

Last Answer : Why did the United States ban the use of DDT?

What is DDT ? What is the reaction of DDT in human body ?

Description : What is DDT ? What is the reaction of DDT in human body ?

Last Answer : DDT is dichloro diphenyl trichloroethane. It is a pesticide. Used to protect crops from pest infestation. DDT used as a pesticide can enter the human body and cause adverse reactions in the human ... that food can cause skin diseases. . The physical and mental development of the child is impaired

DDT was discovered in how many years ?

Description : DDT was discovered in how many years ?

Last Answer : DDT was discovered in 184 , but its use as a pesticide began in 1939.

What is DDT ?

Description : What is DDT ?

Last Answer : DDT is a household cleaning chemical whose full name is dichloro diphenyl trichloro ethane. One is basically a pesticide. When this toxin, which is soluble in lubricants (ie oils), is touched, the sodium channel of the insects becomes more open and paralysis occurs and the insects die.

Where is DDT used ?

Description : Where is DDT used ?

Last Answer : DDT is used in dry.

What is the full form of DDT ?

Last Answer : The full form of DDT is Dichloro Diphenyl Trichloro-Ethane

Who Discovered DDT ?

Last Answer : Discover DDT (Zidler)

Agricultural use of DDT was banned in India during

Description : Agricultural use of DDT was banned in India during

Last Answer : Agricultural use of DDT was banned in India during A. 1962 B. 1972 C. 1974 D. 1989

Now-a-days use of DDT as insecticide is banned because

Description : Now-a-days use of DDT as insecticide is banned because

Last Answer : Now-a-days use of DDT as insecticide is banned because A. It is less effective than other pesticides ... is vary high D. It has long residual effect.

Assertion : Secondary air pollutants are formed by interactin among primary pollutants and are more toxic Reason: DDT is secondary air pollutants

Description : Assertion : Secondary air pollutants are formed by interactin among primary pollutants and are more toxic Reason: DDT is secondary air pollutants

Last Answer : Assertion : Secondary air pollutants are formed by interactin among primary pollutants and are more toxic ... but reason is wrong D. Both are wrong

Find the correct order of biomagnification of DDT in an aquatic food chain:

Description : Find the correct order of biomagnification of DDT in an aquatic food chain:

Last Answer : Find the correct order of biomagnification of DDT in an aquatic food chain: A. Water -0.003 ppm, zooplankton ... fish -0.04 ppm, large fish -2.5 ppm

In an area where DDT had been used extensively, the population of birds declined significantly because:

Description : In an area where DDT had been used extensively, the population of birds declined significantly because:

Last Answer : In an area where DDT had been used extensively, the population of birds declined significantly because: A. ... birds D. Many bird eggs did not hatch.

Biomagnification of DDT causes decline in bird population by:

Description : Biomagnification of DDT causes decline in bird population by:

Last Answer : Biomagnification of DDT causes decline in bird population by: A. Bringing disturbance in calcium methabolism ... breaking of eggs D. All the above

DDT residues are rapidly passed through food chain causing biomagnification because DDT is

Description : DDT residues are rapidly passed through food chain causing biomagnification because DDT is

Last Answer : DDT residues are rapidly passed through food chain causing biomagnification because DDT is A. Water ... C. Liposoluble D. Nontoxic to aquatic animals

Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Description : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV radiations causes ozone depletion .

Last Answer : Which is correct about statements X and Y statement X. DDT shows biological magnification Statement Y : UV ... D. X is not correct, Y is correct.

Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in fish eating birds, upto:

Description : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in fish eating birds, upto:

Last Answer : Biomagnification of DDT in an aquatic food chain starting from water having a concentration of 0.003 ppb may go, in ... B. 50 ppm C. 25 ppm D. 2 ppm

Assertion : Agriculture output increased several times after introduction of DDT. Reason : DDT was the first insecticide used on a wide scale.

Description : Assertion : Agriculture output increased several times after introduction of DDT. Reason : DDT was the first insecticide used on a wide scale.

Last Answer : Assertion : Agriculture output increased several times after introduction of DDT. Reason : DDT was the ... but reason is wrong D. Both are wrong

What is DDT is

Description : What is DDT is

Last Answer : DDT is A. Organophosphates B. Organochlorine C. Carbonate D. Triazine

The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. ... Decreases C. Increases or decreases D. Remains constant

DDT has been a major pollutant because it

Description : DDT has been a major pollutant because it

Last Answer : DDT has been a major pollutant because it A. Kills aquatic animals B. Kills pests C. Destroy many valuable species D. Is nondegradable

DDT concentrartion recorded in human body has been

Description : DDT concentrartion recorded in human body has been

Last Answer : DDT concentrartion recorded in human body has been A. 0.3-0.7 ppm B. 1.3-3.1 ppm C. 13-31 ppm D. 30-70 ppm .

The concentration of DDT in the food chain, from lower to higher trophic levels:

Description : The concentration of DDT in the food chain, from lower to higher trophic levels:

Last Answer : The concentration of DDT in the food chain, from lower to higher trophic levels: A. Remain same B. Decreases in glaciers C. Increases D. Unpredictable