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
Description : Assertion: Biomagnification of DDT can enhance the decline in bird population. Reason: DDT causes thinning of egg shell and their premature breaking b
Last Answer : Assertion: Biomagnification of DDT can enhance the decline in bird population. Reason: DDT causes thinning of ... and Reason are false, then mark (4).
Description : The primary reason why chloramphenicol is not being used as the first line drug for typhoid fever in most areas is: A. Toxic potential of chloramphenicol B. Delayed defervescence with ... C. Delayed bacteriological cure with chloramphenicol D. Spread of chloramphenicol resistance among S. typhi
Last Answer : D. Spread of chloramphenicol resistance among S. typhi
Description : Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? (A) Smog & ozone (B) Hydrogen fluoride & nitrogen oxides (C) Sulphur dioxide & spray of weed killers (D) Carbon monoxide
Last Answer : (D) Carbon monoxide
Description : Assertion: Net primary productivity is gross primary productivity minus respiration. Reason :Secondary productivity is produced by hetrotrophs.
Last Answer : Assertion: Net primary productivity is gross primary productivity minus respiration. Reason :Secondary ... If both assertion and reason are false.
Description : DDT residues are rapidly passed through food chain causing biomagnification because DDT is (a) moderately toxic (b) non-toxic to aquatic animals (c) water soluble (d) lipo soluble.
Last Answer : (d) lipo soluble.
Description : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of polarbodies is to bring haploidy of ovum .
Last Answer : Assertion : During oogenesis polar bodies are formed . Reason : Primary function of formation of ... . If both Assertion & Reason are False.
Description : Assertion : Primary spermatocytes of testes are haploid . Reason : Primary spermatocytes are formed by meiosis I in the spermatogonia .
Last Answer : Assertion : Primary spermatocytes of testes are haploid . Reason : Primary spermatocytes are formed by ... . If both Assertion & Reason are False.
Description : Assertion `:-` Uricotelism is terrestrial adaptation. Reason `:-` Uric acid is least toxic and can be removed with a minimum loss of water.
Last Answer : Assertion `:-` Uricotelism is terrestrial adaptation. Reason `:-` Uric acid is least toxic and can be ... . D. If both Assertion & Reason are false.
Description : Assertion `:-` Mostly aquatic animals are ammonotelic. Reason `:-` Ammonia is the most toxic form and requires large amount of water for its eliminati
Last Answer : Assertion `:-` Mostly aquatic animals are ammonotelic. Reason `:-` Ammonia is the most toxic form and ... . D. If both Assertion & Reason are false.
Description : Assertion : Arthritis or inflammation of a joint makes the joint painful. Reason : Some toxic substances are deposited at the joint
Last Answer : Assertion : Arthritis or inflammation of a joint makes the joint painful. Reason : Some toxic ... D. If both Assertion and Reason are false.
Description : Phytoremediation is not an absolute solution on all types of toxic pollutants. a. Agree with the statement b. Disagree with the statement c. Irrelevant statement d. Unscientific statement
Last Answer : a. Agree with the statement
Description : Examples of secondary air pollutants is/are:
Last Answer : Examples of secondary air pollutants is/are: A. Smog B. PAN C. CFCs D. All the above
Last Answer : Examples of secondary air pollutants is/are: A. Automobile exhausts B. chimneys smog C. photochemicals smog D. Classical smog
Description : A primary air pollutants is
Last Answer : A primary air pollutants is A. `CH_(4)` B. `H_(2)S` C. CO D. All the above
Description : Among the following air pollutants which directly impacts human health as well as climate ? (A) Soot (B) Sulphur dioxide (C) Oxides of nitrogen (D) Chlorofluoro carbons
Last Answer : (A) Soot
Description : Assertion :- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their adaptation to aquatic life secondary.
Last Answer : Assertion :- The aquatic mammals like Dolphins whales etc. do not contain gill slits. Reason : Their ... . D. If both Assertion & Reason are false.
Description : Assertion: Secondary succession taked place i recently. Reason : It is caused due to baing of an area.
Last Answer : Assertion: Secondary succession taked place i recently. Reason : It is caused due to baing of an area ... . D. If both assertion and reason are false.
Description : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has the capacity to produce lateral roots.
Last Answer : Assertion : In stem, pericycle take active part in secondary growth. Reason : In dicots, pericycle has ... D. If both assertion and reason are false.
Description : Assertion : When sperm enters in egg , one polar body is released in human . Reason : At the time of ovulation eggs found in secondary Oocyte phase .
Last Answer : Assertion : When sperm enters in egg , one polar body is released in human . Reason : At the time ... False . D. If both Assertion & Reason are False.
Description : What are secondary pollutants? -Biology
Last Answer : answer:
Description : One of the following acts as secondary pollutants
Last Answer : One of the following acts as secondary pollutants A. Br B. `NO_(2)` C. `HNO_(3)` D. `Cl_(2)`
Description : Two components of automobile exhausts, which can interact to produce secondary pollutants are
Last Answer : Two components of automobile exhausts, which can interact to produce secondary pollutants are A. ... sulphur dioxide D. Sulphur and nitrogen oxides.
Description : Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface. Reason `:-` Small amount of nitrogenous wastes cou
Last Answer : Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface. ... . D. If both Assertion & Reason are false.
Description : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature Graafian follicle . Reason : Endometrium of ute
Last Answer : Assertion : During follicular phase , the primary follicles in the ovary grow to become a fully mature ... D. If both Assertion & Reason are False.
Description : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary alcohols Reason: The reaction leads to a
Last Answer : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary ... . Assertion is false, Reason is true
Description : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element disinegrates, more of it is formed in nat
Last Answer : Assertion (A) : The average life of a radioactive element is infinity Reason (R ) : As a radioactive element ... . If both (A) and (R ) are incorrect.
Description : What are primary pollutants? -Biology
Description : Primary pollutants is the one, which
Last Answer : Primary pollutants is the one, which A. Enters enviroment directly B. Is formed naturally C. ... or more pollutants components D. Is anthropogenic .
Description : Assertion : Among the land animals. Cheetah can run faster over the ground. Reason : Cheetah uses its powerful forelimbs to push it self forward durin
Last Answer : Assertion : Among the land animals. Cheetah can run faster over the ground. Reason : Cheetah uses its ... D. If both Assertion and Reason are false.
Description : Assertion: Among the primates, chimpanzee is is the closest relative of the present day humans. Reason : The banding pattern in the autosome numbers 3
Last Answer : Assertion: Among the primates, chimpanzee is is the closest relative of the present day humans. ... If both the assertion and reason are false.
Description : Assertion :- He has highest I.E among all elements. Reason :- He has highest E.A among all elements.
Last Answer : Assertion :- He has highest I.E among all elements. Reason :- He has highest E.A among all ... is False. D. If both Assertion & Reason are false
Description : Assertion: Pristine forests are among in situ conservation strategies. Reason: These are sacred grooves where biota is pro- tected on site
Last Answer : Assertion: Pristine forests are among in situ conservation strategies. Reason: These are sacred grooves where ... Reason are false, then mark (4).
Description : Assertion: Western Ghats are included among the hot spots of biodiversity. Reason: Western Ghats have greater amphibian diversity than Eastern Ghats
Last Answer : Assertion: Western Ghats are included among the hot spots of biodiversity. Reason: Western Ghats have greater ... and Reason are false, then mark (4).
Description : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger than O - O single bond.
Last Answer : Assertion:Among chalcogens, catenation tendency is maximum for sulphur Reason: S-S bond is stronger ... is not correct and Statement-II is correct
Description : Assertion (A): The purpose of higher education is to promote critical and creative thinking abilities among students. Reason (R): These abilities ensure job placements. Choose the correct answer from the following code: (A) Both ... A) is true and (R) is false. (D) (A) is false and (R) is true.
Last Answer : (C) (A) is true and (R) is false.
Description : The minerals which formed, deposited or introduced as result of subsequent changes in rocks are known as — a. Essential mineral b. Primary mineral c. Secondary mineral d. Accessory mineral
Last Answer : c. Secondary mineral d. Accessory mineral
Description : Assertion `:-` Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed. Reason `:-` Counter current mechanism
Last Answer : Assertion `:-` Human kidneys can produce urine nearly four times concentrated than the initial filtrate ... D. If both Assertion & Reason are false.
Description : Assertion: A sanctuary is formed for the conservation of animals only. Reason: Restricted human activities are allowed in sanctuaries.
Last Answer : Assertion: A sanctuary is formed for the conservation of animals only. Reason: Restricted human ... . If both assertion and reason are false.
Description : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin formed by reduction of bile pigment.
Last Answer : Assertion `:` Faeces are brown coloured. Reason `,` Faeces contain brown pigment named sterocobilin ... D. If both Assertion & Reason are false.
Description : Assertion :- Fossils are always reamins of hard parts of life -forms found only in rocks. Reason :- Rocks are formed due to sediments.
Last Answer : Assertion :- Fossils are always reamins of hard parts of life -forms found only in rocks. Reason :- ... . D. If both Assertion & Reason are false.
Description : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration `(CMC)` . Reason(R): The conductivity of a s
Last Answer : Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration ` ... If both Assertion & Reason are False.
Description : Assertion : Originwise hair are epithelial tissue which are of ectodermal origin. Reason : Epithelial tissue can be formed from mesoderm and endoderm
Last Answer : Assertion : Originwise hair are epithelial tissue which are of ectodermal origin. Reason : Epithelial ... . If both Assertion & Reason are false.
Description : Assertion : Calcified cartilage is formed by the calcification of hyaline cartilage. Reason : Calcified cartilage is the strongest cartiage.
Last Answer : Assertion : Calcified cartilage is formed by the calcification of hyaline cartilage. Reason : Calcified ... . If both Assertion & Reason are false.
Description : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed by the fusion of naked protoplasts of two plant.
Last Answer : Assertion : A major advantage of tissue culture is protoplast fusion. Reason : A hybrid is formed ... false D. If both assertion and reason are false
Description : Among pollutants which has the most lasting effect
Last Answer : Among pollutants which has the most lasting effect A. Carbon monoxide B. Pesticides C. Sulphur dioxide D. Smoke from chimneys.
Description : Atmospheric pollutants formed by human activities constitute of the total
Last Answer : Atmospheric pollutants formed by human activities constitute of the total A. 0.95 B. 0.75 C. 0.25 D. 0.0005