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Manures are made up of natural substances like dead leaves and plants. whereas fertilisers are made from chemicals.

The leading agronomic benefits of micro-irrigationare:

Uses less water.Reduces pest problems.Surface crusting is reduced.Joint management ofirrigationand fertilization

ADVANTAGES.Irrigationmakes it possible to grow cash crops whichgivegood returns to the cultivators. Examples of cash crops are; sugarcane, potato, tobacco etc. It improves the groundwater storage as water lost due to seepage adds to groundwater storage.

One advantage of irrigation is that it supplies water to the crops

Riding a bicycle is the example of ke

villi is small finger like structure.this is present on small intestine

The digested food is taken up by the walls of the intestine . The inner lining of the small intestine has numerous finger like projections called villi which increase the surface area for absorption. The villi are richly supplied by the blood vessels which take the absorbed food to each and every cell of the body.

Villi are the small finger like projections present in the small intestine and they are connected with an extensive network of blood vessels. They increase the surface area for absorption. The villi pass the absorbed food to every cell in the organism with the help of blood vessels.

The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, are present numerous blood vessels which absorb the digested food and carry it to the blood stream.

The small intestine has millions of tiny finger-like projections called villi.

Its functions are:-

1)The villi increase the surface area for absorptionof digested food.

2)It absorbs all the nutrients from the food and convert it into glucose.

3) After converting the food into glucose and send it into all the body parts.

The loss of excees water in the form of vapor from the aerial parts of the plant is known as transpiration. Transpiration is essential for the movement of water and minerals from the root to the healthy parts of the plant. But excess transpiration may result in drying up of the leaves or wilting and loss of soil water. Hence it is termed as a necessary evil.

Transpirationoccurs through the stomata. ... Thustranspirationis called as anecessary evilbecause it is an inevitable process. The loss of water can lead to wilting, serious desiccation, and shortage of water.Transpirationhelps in the ascent of the sap and the pulling of the water from the roots to the tips.

Innovation in architecture is with no doubt extremelyimportant, butpreservingand restoring the old buildings is alsoimportantbecause those oldmonumentsare the reflection of our history, they help us to understand and respect people who lived in different eras with different habits and traditions.Conservation ofheritagebuildings is veryimportantbecause it provides a sense of identity and continuity in a fast changing world for future generations.Heritagebuildings basically represent the past history and culture of a nation. ... Therefore,heritagebuildings need animportanttool to protect them.

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the reason behind it isn't the concentration of salt in the solution. If we drank shikanji normally then no vomiting takes place. excess salt is bad for stomach. that's why this happened.

An experiment conducted byStanley L. Miller and Harold C. Ureyin 1953 proved that origin of life takes place from inanimate matter.

They assembled an apparatus to create an early earth-like atmosphere which was supposed to consist of gases like methane, ammonia and hydrogen sulphide but no oxygen, over water.This was maintained at a temperature just below 100°C and sparks were passed through the mixture of gases to stimulate lightning. At the end of a week, 15% of the carbon from methane had been converted to simple compounds of carbon including amino acids which make up protein molecules.

Ans :- Stagnant wateracts as a breeding ground for mosquitoes which transmit malaria and dengue these are dangerous diseases that can kill people. This is becausestagnant wateracts as an incubator for several kinds of parasites and bacteria.

Theplacentais an organ that develops in the uterus during pregnancy. This structure provides oxygen and nutrients to the growing baby and removes waste products from the baby's blood. Theplacentaattaches to the wall of the uterus, and the baby's umbilical cord arises from it.

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Some of the advantages are -1. Plants that do not produce seeds can reproduce this way. 2. Since only one plant is required, pollination is not needed. 3. It is a fast method of reproduction.4. Plants with desirable characteristics can be propagated easily because the offspring are exact copies of their parents.

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pure substance are substances with same chemical composition . ex-pure sugar ,water

mixtures are combination of two things . ex-air , alloys

element and compound are pure substance

elements and compound are pure substance

Firstly, a pure substance is matter which cannot be separated into any other kind of matter when using the physical or chemical process. All the particles which make up a pure substance have the same color, taste, composition and texture. In other words, it can be an element or a compound, which consists of only one component with a definite composition,chemical and physical properties.

Secondly, a mixture is a combination of two or more substances which are not united using a chemical procedure. The components that make up a mixture do not exist in fixed proportions, and most of the natural substances that you are familiar with, are mixtures. Examples of mixtures include water, alcohol, oil, and dye.

1.Pure substancescannot be separated into anyotherkinds of matter, while amixtureis a combination of two or morepure substances. 2. Apure substancehas constant physical and chemical properties, whilemixtureshave varying physical and chemical properties (i.e., boiling point and melting point).

A mixture is made of two substances while a pure substance is a substance which is chemical free. Ex - MIXTURE- mixture of curd and milk PURE SUBSTANCE- filtered water May you like the answer Please like.

pure substance is homogeneous substance of only one substance

mixture contain component of more than two substance

A mixture In which one kind of atom is available

Pure substance is made up of similar elements for example gold and mixture is a composition of two or more than two substances e,g solution of sugar with water

Breathing is a part of process called respiraton

In psychology, maturity is the ability to respond to the environment in an appropriate manner. Maturity also encompasses being aware of the correct time and location to behave and knowing when to act, according to the circumstances and the culture of the society one livesnormally 18 for girls21 for boys

Exercise-associated muscle cramps (EAMC) are a common condition experienced by recreational and competitive athletes.

Dehydration and neuromuscular causes are the most widely discussed theories for the cause of these muscle cramps. However, any experimental evidences are not available.

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The following things are matter ---

ChairAirAlmondLemon water

chair ,air, almond, lemon, water 👍

Matter ischair,air,almonds,lemon,water

chair, air, almonds, lemon water are matter they present particles

Fertilization is an internal process in human

Internal fertilizationis the union of an egg cell with a sperm during sexual reproduction inside the body of a parent. For this to happen there needs to be a method for the male to introduce the sperm into the female's reproductive tract

Internal fertilizationis when the male deposits his sperm directly into the female's body.

External fertilizationis when the male and female's gametes unite outside the female's body.

Animalsand plants that areat riskof becoming extinct because of threats from changing environments or predators are consideredthreatenedorendangered. An "endangered"speciesis anyspeciesin danger of extinction through all or a significant portion of its range

for free from micro bacteria, and prevent from infaction.

1. Cartilaginous fishes are mostly marine.

2. The mouth of cartilaginous fishes is ventral.

. The external nares are ventral.

4. The scales of cartilaginous fishes are Placoid.

5. In cartilaginous fishes, operculum is absent except chimaera.

6. Caudal fins are heterocercal (asymmetrical).7. In cartilaginous fishes, cloaca are present except chimaera.

8. Endoskeleton is cartilaginous.

9. Sprial valve is present in the intestine of cartilaginous fishes.

10. Cartilaginous fishes have 5-7 pairs of gills.

11. Swimbladder (air bladder) is absent in cartilaginous fishes.

12. Excretory matter of cartilaginous fishes is Urea.

Difference # Bony Fishes:

1. Bony fishes are mostly marine and fresh water.

2. The mouth of bony fishes is anterior.

3. The external nares are dorsal.

4. The scales of bony fishes are genoid, cycloid and ctenoid.

5. In bony fishes, operculum is present

6. Caudal fins are usually homocercal (symmetrical).

7.. In bony fishes, cloaca is absent.

8. Endoskeleton is partly or wholly bony.

9. Sprial valve is usually absent in intestine of bony fishes.

10. Bony fishes have 4 pairs of gills.

11.. Swimbladder (air bladder) is present in bony fishes.

12. Excretory matter of bony fishes is ammonia.

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Balanced forcesdo not cause a change in motion. Whenbalanced forcesact on an object at rest, the object will not move. If you push against a wall, the wall pushes back with an equal but oppositeforce. Neither you nor the wall will move.Forcesthat cause a change in the motion of an object areunbalanced forces.

What is your question here?

False

Explanation:Silkworms make silk by spewing a substance called fibroin through small holes in their jaws called spinnerets. The spewed-out substance consists of digested leaves and protein produced by the worm. The silkworm produces up to 1200 silken threads within a 72 hour time period, creating a soft, silver cocoon.

1 (B) P- Bacterium Q- Fungus R- Virus

2 (C) Plasmodium destroys the patient's red blood cells.

3 (A) Tetanus is a bacterial disease

4 (D)Fungus is used to obtain penicillin which is an antibiotic.

Rice has more than 50,000 genetically different strains, while mango has 1000 varieties in India. Answer c

inforest region of South Southern Nigeria is limited by heavy rainfall. Production of late season maize/legumes by peasant farmers is gaining prominence though yields are low due to low soil fertility and improper crop arrangement. The objective of this research was to investigate the performance of late season maize/soybean intercropping in response to nitrogen fertilization and spatial arrangement of the intercrops. The trial was a split-plot design in randomized complete block with three replications. Treatments consisted of five nitrogen rates (0, 25, 50, 75 and 100 k ha-1), two sole crops and three maize/soybean intercrop arrangements (1:1, 2:2 and 1:2). Application of nitrogen positively influenced the two crops either as sole crops or as intercrops. Nitrogen increased plant height, number of leaves per plant and stem girth in both crops up to the 100 kg ha-1. Similarly, the number of branches in soybean and LAI and stover yield in maize also responded up to the 100 kg ha-1used. Haulm yield in soybean responded optimally at 50 kg N ha-1. Intercropping maize with soybean reduced maize plant height, LAI, stem girth, number of leaves per plant and stover yield below their sole crop values. Similarly, soybean stem girth, number of branches per plant and haulm yields were reduced below their sole crop values when intercropped with maize. Soybean plant height increased above its sole crop height at all intercrop arrangements. There were no significant interaction effects between nitrogen and crop arrangements. Growing maize and soybean in alternating single rows decreased stover and haulm yields much more than growing the two crops in alternating double rows or in one row of maize alternating with two rows of soybean.

Termites live on cellulose, mostly from the dead wood they chew, but they depend on protozoa in their gut to provide the enzymes that candigestthe wood," Poinar said. "These protozoa would die outside of the termite, and the termite would starve if it didn't have the protozoa to aid in digestion.

Gut Bacteria HelpDigest and Absorb Foods. The most plentiful and importantbacteriain the smallintestineis the Lactobacillus species. Lactobacillushelpsferment indigestible carbohydrates and, as I mention below, supports the breakdown of sugars in dairy products, which are a common source of food sensitivities.

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*6/6685,5+32/2"?5=8+8+89592+2!6"6?

The existence of two or more different physical forms of a chemical element.

There are three allotropes for carbon:i)Fullerene ii)Diamond iii)Carbon

Allotropy- It is a property by which an element can exist in different forms having different physical properties.

There are three allotropes for carbon:i)Fullerene ii)Diamond iii)Carbon

yes it is correct answer