Description : Which of the following weeds has been found useful to check water pollution caused by industrial affluents? (1) Parthenium (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2) above
Last Answer : (3) Water hyacinth Explanation: Around the world, there is an increasing trend in areas of land, surface waters and groundwater affected by contamination from industrial, military and agricultural activities due to either ignorance, lack of vision, or carelessness.
Description : Which of the following weeds has been found effective in checking water pollution caused by industrial affluents? (1) Water hyacinth (2) Elephant Grass (3) Parthenium (4) Both (2) and (3)
Last Answer : (1) Water hyacinth Explanation: Plants that are resistant to crude oil toxicity such as black poplar and willows, as well as miscanthus grass (elephant grass) have been found to ... oliefera seeds and Parthenium hysterophorus plants are effective for the removal of industrial p011utants in water.
Last Answer : Both (2) and (3)
Description : Which of the following weeds has been found useful to check water pollution caused by industrial effluents? (1) Partheniurn (2) Elephant grass (3) Water hyacinth (4) Both (1) and (2)
Last Answer : (4) Both (1) and (2) Explanation: Parthenium and Elephant grass are useful to check water pollution caused by industrial effluents.
Description : Which one of the following weeds is effective in controlling water pollution caused by industrial effluents? (1) Parthenium (2) Elephant grass (3) Water hycinth (4) Molar grass
Last Answer : (3) Water hycinth Explanation: Water hyacinth (Eichhornia crassipes) is used for purifying not only domestic wastewater but also industrial wastewater. It can readily absorb, accumulate and ... hyacinth can remove even radioactive metals from industrial effluents, which is very difficult otherwise.
Description : Which one of the following weeds is effective in controlling water pollution caused by industrial effluents? (1) Parthenium (2) Elephant grass (3) Water hycinth (4) Mogar grass
Last Answer : Water hycinth
Description : Cochineal insects have proved very useful for (a) cactus prevention (b) Eichhornia prevention (c) weeds control (d) Parthenium control.
Last Answer : (a) cactus prevention
Description : .Which weed is considered as biopesti cide and severely inhibit the growth of water hyacinth? a). Parthenium b). Echinochloa c). Cuscuta d). Lantana
Last Answer : c). Cuscuta
Description : The rapidly growing mass of phytoplankton coveting the surface water of a lake or pond is known as – (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth
Last Answer : (1) Eutrophication Explanation: Eutrophication is the ecosystem response to the addition of artificial or natural substances, such as nitrates and phosphates, through fertilizers or sewage, to an aquatic ... increase of phytoplankton in a water body as a response to increased levels of nutrients.
Description : The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as : (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth
Last Answer : Eutrophication
Description : I used vinegar,alcohol,water to kill weeds,now the grass has turned brown now what do I do
Last Answer : No worries the grass will recover. If you are indeed worried mix sugar with water and spray your grass generously in the areas where it is brown. The grass will grow back and will be greener than prior to the killing of the weeds, in time it will also grow thicker in those areas. -Birdy
Description : Industrial weeds can be controlled by using a). Non selective herbicides b). Selective herbicides c). Soil sterilants d). Both a and c
Last Answer : d). Both a and c
Description : Why is grass preferable to weeds?
Last Answer : answer:Weeds are in the eye of the beholder. Man likes to control nature, and weeds are not easily controlled. They can't be manicured to mimic a lawn and they are wild with minds of their own. haha ... them in my avatar. I love my prize weeds and our local fair even has The tallest weed contest.
Description : how to get rid of violet weeds that are growing and pushing out the grass
Last Answer : vinegar is safe...use a squirt container to kill the roots...it will kill some grass but the grass will come back......when you cut your grass in that area use a bag and that will take care ... You could use weed & feed but that is a chemical keep children and pets away until the first good rain.
Description : Does anyone have experience with a total grass herbicide that really kills all grass and weeds? I have about 3 m2 of land in front of the garage, it's not mine, but I'm cutting it with a new mower, I need to destroy the vegetation on it. Thanks for the advice.
Last Answer : here >>> http://www.czporadna.cz/?qa=20572/jak-odstranit-travu-prorustajici-mezi-schody&show=20576#a20576 ☢ ☠ ☣ ☠ ☣ ☠ ☣ ☠ ☢
Description : What is the best lawn fertilizer for killing weeds and bringing in the grass?
Last Answer : Scotts brand fertilizer with Plus2 weed control is the most popular and has many diehard fans. It should be noted, however, that no fertilizer can cause new grass to grow, only help existing grass to grow. For totally bald areas in a lawn reseading will be necessary.
Description : What are the Grassy weeds? a. Wild Oat b. Doob Grass c. All of the above d. None of the above
Last Answer : c. All of the above
Description : The elephant grass grows in Savanah Grassland biome.
Last Answer : Identify the correct correlation: A - The elephant grass grows in Savanah Grassland biome. R - ... but R is not the correct explanation of A.
Description : How does elephant grass adapted in the savanna?
Last Answer : it has deeper roots
Description : Which of the following represents a foodchain involving a producer, a vegetarian and a non vegetarian? (1) Grass — Insect — Elephant (2) Plant — Rabbit — Tiger (3) Fish - Insect - Whale (4) Tiger —- Rabbit - Owl
Last Answer : (2) Plant - Rabbit - Tiger Explanation: A food chain is a linear sequence of links in a food web startingfrom a trophic species that eats no other species in the web and ends ... a food chain where plant represents producer, rabbits represent a vegetarian, while tiger represents a non-vegetarian.
Description : Which of the following represents a foodchain involving a producer, a vegetarian and a nonvegetarian ? (1) Grass – Insect – Elephant (2) Plant – Rabbit – Tiger (3) Fish – Insect – Whale (4) Tiger – Rabbit – Owl
Last Answer : Plant – Rabbit – Tiger
Description : What weeds do you find useful and enjoyable in your daily life?
Last Answer : A weed is ”…a plant considered undesirable in a particular situation, “a plant in the wrong place”.” If you have planted herbs they are not weeds. On the other hand that 100 year old oak tree in the yard would be considered a weed if you don’t want it.
Description : Soil mulch is useful in: (A) Minimize evaporation losses (B) Improving aeration (C) Improving drainage (D) Removing weeds
Last Answer : (A) Minimize evaporation losses
Description : Paddy cono weeder is useful for. a) Weeding between rows of crops like cotton for sugarcane. b) For uprooting and burying weeds in between standing rows of rice crops in in wetland. c) For weeding in raw crops in rain fed. d) For placing seed in continuous flow.
Last Answer : For uprooting and burying weeds in between standing rows of rice crops in in wetland.
Description : is useful for uprooting and burying weeds between standing rows of rice crops in wetlands a) Sweep b) Engine operated weeder c) Cono weeder for paddy d) Dry land weeder
Last Answer : <!-- [endif] -->Cono weeder for paddy
Description : A weed brought as ornamental a). Water hyacinth b). Lantana c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : Arsenic concentration has been on an increase in the ground water of certain areas in Bihar and West Bengal due to: 1. acid rain 2. excessive pumping of ground water 3. industrial pollution 4. leaching of agricultural land The correct ... ) 1, 3 and 4 only (c) 1, 2, 3 and 4 (d) 1, 2 and 3 only
Last Answer : Ans:(a)
Description : Which of the following indicates the types of soil erosion in decreasing order of damage caused In India (a) Ravine erosion .and gullies, alkalinity and salinity weeds and water-logging (b) Alkalinity ... and weeds (c) Water-logging, weeds, salinity and ravine erosion (d) All are equally damaging
Last Answer : Ans: (a)
Description : What is Parthenium ?
Last Answer : Parthenium is a type of poisonous plant. Playing with any part of this plant or coming in contact with it for a long time can cause death of human beings. The English name of Parthenium is ... Caffeic acid, Vanillic acid, Ansic acid, P-anisic acid, Chlorogenic acid, Ges Parahydroxy benzoic acid .
Description : Parthenium hysteroforus is biologically controlled by
Last Answer : Ans.Zygrogramma bicolarata
Description : Which of the following is correctly matched? (a) Aerenchyma – Opuntia (b) Age pyramid – Biome (c) Parthenium – Threat to hysterophorus biodiversity (d) Stratification – Population
Last Answer : (c) Parthenium – Threat to hysterophorus biodiversity
Description : The weed that causes Asthma is— (A) Hirankhuri (B) Bathua (C) Parthenium (D) Krishna Neel
Last Answer : (C) Parthenium
Description : The most important weed against which eradication measures would be taken on war footings is (a) Eichhornia (b) Dactylis (c) Parthenium (d) Ageratum
Last Answer : (c) Parthenium
Description : Parthenium is a very serious problem in a). Tamil Nadu b). Rajesthan c). Jammu and Kashmir d). Maharastra
Last Answer : d). Maharastra
Description : Weed species which has nematicidal prop erty a). Crotolaria b). Parthenium c). Eichhornia sp d). All of these
Last Answer : d). All of these
Description : Chemical control of Parthenium hys terophorus a). Metsulfuron methyl b). Metribuzin c). Atrazine d). All
Last Answer : d). All
Description : Each year an awareness week is or ganized by DWR Jabalpur, an ICAR In stitute in reference to which of the weed a). Lantana camara b). Chromolaena adenophorum c). Parthenium hysterophorus d). Imperata cylindrica
Last Answer : c). Parthenium hysterophorus
Description : VELGO is a bioherbicide used against a). Echinochloa b). Parthenium c). Cenchrus d). Abutilon
Last Answer : d). Abutilon
Description : Bioagent for controlling Parthenium hysterophorus a). Bactra verutana b). Zygogramma bicolorata c). Chrysolira d). Flea beetle
Last Answer : b). Zygogramma bicolorata
Description : Eradication is possible in following weed situations a). Ageratum conyzoides b). Phalaris minor c). Parthenium hysterophorus d). Lantana
Last Answer : d). Lantana
Description : A weed having spines as adaptations that repel grazing a). Solanum nigrum b). Solanum xanthocarpus c). Parthenium d). Ageratum
Last Answer : b). Solanum xanthocarpus
Description : What kind of stem can be seen in water hyacinth ?
Last Answer : Offset stems can be seen in water hyacinth.
Description : How to see water hyacinth flowers ?
Last Answer : Small and light in the form of water-pollinated flowers.
Last Answer : : In the late nineteenth century, an orchid-loving tourist liked water hyacinth flowers so much that he brought them with him when he came to this country from Brazil. Roar Bengali
Last Answer : The answer is a joke ...
Last Answer : : There is a lot of air chamber between the stalk and leaves of Kachuri drink which is why it floats in water.
Description : Which one of the following pairs of organisms are exotic species introduced in India? (a) Lantana camara, water hyacinth (b) Water hyacinth, Prosopis cinereria (c) Nile perch, Ficus religiosa (d) Ficus religiosa, Lantana camara
Last Answer : (a) Lantana camara, water hyacinth
Description : Pollination in water hyacinth and water lily is brought about by the agency of (a) water (b) insects or wind (c) birds (d) bats.
Last Answer : b) insects or wind
Description : In water hyacinth and water lily, pollination takes place by (a) insects or wind (b) water currents only (c) wind and water (d) insects and water
Last Answer : (a) insects or wind
Description : Which one of the following pairs is wrongly matched while the remaining three are correct? (a) Penicillium – Conidia (b) Water hyacinth – Runner (c) Bryophyllum – Leaf buds (d) Agave – Bulbils
Last Answer : (b) Water hyacinth – Runner