Explore topic-wise InterviewSolutions in .

pacific us the longest water body in world

Pacific ocean is the longest water body in the world

Indian standard time is determined by 82. 30` East Meridien

Pacific Ocean is the longest water body of the world

railway is the cheapest way of transport

It is called seed. Seed is called the ripened ovule.

A seed is a small embryonic plant enclosed in a coveringcalledthe seed coat, usually with some stored food.

Silkhas a smooth, soft texture that is not slippery, unlike many syntheticfibers.Silkis one of the strongest naturalfibers, but it loses up to 20% of its strength when wet. It has a good moisture regain of 11%. Its elasticity is moderate to poor: if elongated even a small amount, it remains stretched.

(C) Different number of neutrons

different number of neutronssame number of protons

In living organisms,respiration occurs at two levels; at the body level and at the cellular level.In case of the respiration occuring at the body level , oxygen and carbon dioxide are exchanged between the body and the surrounding . Anaerobic respiration involves only two steps : glycolysis and fermentation.

Respirationis theprocessof releasing energy through the breakdown of nutrients such as glucose.Respiration canbe aerobic (uses oxygen) or anaerobic (doesnot use oxygen). Aerobicrespiration takes place continuously in bothplantsandanimals. Itoccursthrough aprocessknown as cellularrespiration.

Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing theevolutionof farm stock. This process is calledartificial selectionbecause people (instead of nature) select which organisms get to reproduce.

color and state of a particle can be physical when we are not talking about any reaction change.But, when a reaction is involved and we observe a change in color or state, it then becomes a chemical property.

A fewexamplesof such flowers includeHibiscus, Sunflower,Rose, Lily, Tulip, and Daffodil.

p) ---- polyesterq) ------ thermosetting plasticr) -------- thermo Plastics)------ rayon

so, option 1 is correct.

Condoms are generally preferred since a vasectomy won’t protect against STIs and shouldn't be considered a reversible procedure.

1)They are less expensive2)Prevents STDs3)It has no other side effects.

Ans :- Since prevention is by default better than cure, some of the best steps to avoid pregnancy have been shared below. Also, note that this might as well be a summary of what has already been discussed. Nevertheless, let’s explore fresh options that can provide you with the best way to prevent pregnancy.

Never indulge in sexual intercourse without protection.

Make a wise choice of a contraceptive method for both females and males.

Sex during your menstrual cycle without protection must be avoided.

Take proper initiatives to keep pregnancy at bay and curb practices such as pulling out before ejaculation as there is no guarantee that sperm hasn’t already reached your egg.

Having sex without protection during the “safe period” can also prove to be a misnomer. Any missed calculations can, of course, get you pregnant.

Refrain from bringing exposed genitals in close contact with sex without protection as there is a high chance that some sperm may end up fertilising your egg.

If you are already taking birth control pills, it is advised that you do not make a habit of taking them irregularly.

a) Contraceptive methods are used such as (1 mechanical barriers (ii) drugs (as pills) (iii) loop or copper-T and (iv) surgical method.

(b)Pills change the hormonal balance and thus prevent the release of egg, hence fertilization is prevented.

Because menstrual cycle is the removal of the inner lining of the uterus which is basically there to help prepare the body for the formation of foetus. If the egg is fertilized then the foetus formation will take place and the inner lining won't shed off thus no menstrual cycle will take place.

The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels which forms liquid that comes out through vagina. Menstruation only occurs if the released ovum is not fertilised.Such an endometrium is necessary for implantation of the fertilised ovum and other events of pregnancy. During pregnancy all events of the menstrual cycle stop and there is no menstruation.

a) Contraceptive methods are used such as (1 mechanical barriers (ii) drugs (as pills) (iii) loop or copper-T and (iv) surgical method.

(b)Pills change the hormonal balance and thus prevent the release of egg, hence fertilization is prevented.

The average length of human gestation is 280 days, or 40 weeks, from the first day of the woman's last menstrual period. The medical term for the due date is estimated date of confinement (EDC). However, only about four per cent of women actually give birth on their EDC.

The duration approximately 9 months.

Ideally, your urine would be apaleyellow color. This would indicate you're hydrated. Urine naturally has some yellow pigments calledurobilinor urochrome. The darker urine is, the more concentrated it tends to be.

If your urinary system is healthy, holding your pee generally isn’t dangerous. If you’re an adult and your bladder is holding more than 2 cups of urine, you may start to feel uncomfortable.

If you have an overactive bladder, holding your pee can be an important part ofbladder training. Regular bladder training may help you develop a more convenient urination schedule.

There isn’t a set guideline for how long you can safely hold your pee. It varies from person to person.

In certain circumstances, holding urine for any length of time can be dangerous. If you have any of the following conditions, holding your urine can increase your risk of infection or kidney disease:

enlarged prostate

neurogenic bladder

kidney disorders

urinary retention

we need food for survive because without food we can not survive. we can obtained food from plants and animals. food is a source of energy

SI unit of resistance is ohm's law

ohm's is the SI unit of resistance

2. F ,Cl ,Br I3.Mg4.Florin5.hydrogen6. helium

7 . carbon d and water10. ohm

1. 7 horizontal row in modern periodic table

2,f cl br,i3,mg4,florin5,h6,he

1-periods2-iodine, chlorine 3-Mg4-Florin5-Hydrogen6-Helium10-ohm's law

ohm/s is the best answer

20​oC is the minimum temperature difference required between 2 km of depth in ocean water to set up an ocean thermal power plant.

20℃is the minimum temperature difference required between surface water and the water at depths of upto 2 km in an ocean thermal energy plant

Like if you find it useful

Urine formation involves three main processes namely, glomerular filtration, reabsorption and secretion.

The first step in urine formation is the filtration of blood, which is carried out by the glomerulus and is called glemerular filtration.



On an average, 1100-1200 ml of blood is filtered by the kidneys per minute which constitute roughly 1/5th of the blood pumped out by each ventricle of the heart in a minute.

The glomerular capillary blood pressure causes filtration of blood through 3 layers, i.e., the endothelium of glomerular blood vessels, the epithelium of Bowman's capsule and a basement membrane between these two layers. The epithelial cells of Bowman's capsule called podocytes are arranged in an intricate manner so as to leave some minute spaces called filtration slits or slit pores. Blood is filtered so finely through these membranes, that almost all the constituents of the plasma except the proteins pass onto the lumen of the Bowman's capsule. Therefore, it is considered as a process of ultra filtration.

The amount of the filtrate formed by the kidneys per minute is called glomerular filtration rate (GFR). GFR in a healthy individual is approximately 125 ml/minute, i.e., 180 litres per day.

The kidneys have built-in mechanisms for the regulation of glomerular filtration rate. One such efficient mechanism is carried out by juxta glomerular apparatus GGA). JGA is a special sensitive region formed by cellular modifications in the distal convoluted tubule and the afferent arteriole at the location of their contact. A fall in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the CPR back to normal.

A comparison of the volume of the filtrate formed per' day (180 litres per day) with that of the urine released (1.5litres), suggest that nearly 99 per cent of the filtrate has to be reabsorbed by the renal tubules. This process is called reabsorption. The tubular epithelial cells in different segments of nephron perform this either by active or passive mechanisms.

Substances like glucose; amino adds, Na+, etc, in the filtrate are reabsorbed actively whereas the nitrogenous wastes are absorbed by passive transport. Reabsorption of water also occurs passively in the initial segments of the nephron.

During urine formation, the tabular cells secrete substances like H+, K+and ammonia into the filtrate. Tubular secretion is also an important step in urine formation as it helps in the maintenance of ionic 'and acid base balance or body fluids.

Blood : (I) it is reddish in colour.(ii) It contains red blood cells.(iii) Blood flows rapidly.(iv) Blood flow is bidirectional from heart to organs and from organs to heart.(v)It is the main transport medium of different materials in the body.

Lymph: (I) It is pale yellow in colour(ii) Red blood cells are absent(iii) Lymph flow is slow(iv) lymph flow is unidirectional from tissues to veins.(v) It functions as middle man between tissues and blood.

please write cleare because I don't understand your writing

The three main steps of urine formation are1) Glomerular filteration, 2) Reabsrption, 3) Secretion

Glomerular filteration occurs in malphgian corpuscle formed together by glomerular and its surrounding Bhowman's capsule.Reabsoption and secretion occurs in highly coiled renal tubule.

Filtration involves the transfer of soluble components, such as water and waste, from the blood into the glomerulus.Reabsorption involves the absorption of molecules, ions, and water that are necessary for the body to maintain homeostasis from the glomerular filtrate back into the blood.Secretion involves the transfer of hydrogen ions, creatinine, drugs, and urea from the blood into the collecting duct, and is primarily made of water.Blood and glucose are not normally found in urine.Key Termsurine: A liquid excrement consisting of water, salts, and urea, which is made in the kidneys then released through the urethra.glomerulus: A small, intertwined group of capillaries within nephrons of the kidney that filter the blood to make urine.

You can write the function of nephron

The kidneys filter unwanted substances from the blood and produceurineto excrete them. There are three main steps ofurine formation: glomerular filtration, reabsorption, and secretion. Theseprocessesensure that only waste and excess water are removed from the body.

Heating the CuSO4.5H2O crystals causes then to loose the water of crystallisation that is the 5H2O part. It becomes anhydrous copper sulphate. Its colour changes to white from blue.

CuSO4.5H2O →CuSO4 +5H20

Further heating the anhydrous copper sulphate may cause it to undergo decomposition and form a black substance which is copper(II) oxide along with it oxygen and sulphur dioxide gases are also formed.

2CuSO4→2CuO + O2 +2SO2

zoospore is asexual and zygospore is sexual

essential amino acidsare required in the human diet as they cannot be synthesized by the body.

Vertebrates andInvertebrates possess one of two types of circulatory systems. Namely, open circulatory system and closed circulatory system. Open circulatory system is primarily found in invertebrates. Here, the blood flows freely through cavities and there is no vessels to conduct the blood. Closed circulatory system, on the other hand is found in vertebrates and a few invertebrates like earthworms. This system has the presence of vessels that conduct blood throughout the body.

1. A healthy diet should include a wide variety of nutritious foods for sufficient intake of all nutrients, including vitamins and minerals.

2. Drink at least two bottles of water a day.

option C.

The bacterium is Rhizobium is found in the root nodules of leguminousplantssuch as peas. It lives in symbiotic association withplantsand fixes the atmospheric nitrogen in leguminousplants. This increases the fertility of the soil. Hence,farmers cultivate plants belonging to thelegume family.

प्रकाश ऊर्जा (Light Energy)

किसी स्रोत का ताप बढ़ाने पर उसमें निहित प्रकाश ऊर्जा के भाग में वृद्धि होती है तथा स्रोत के ताप घटाने पर ऊष्मीय ऊर्जा के भाग में वृद्धि होती है।

ब्रम्हाण्ड में प्रकाश एवं ऊष्मा के अनेक स्रोत हैं। पृथ्वी के सबसे नजदीक ऊष्मा एवं प्रकाश का स्रोत सूर्य है। सूर्य से अपार मात्रा में ऊर्जा उत्सर्जित होने का मूल कारण उसमें हाइड्रोजन नाभिकों का आपस में संलयन होना है। इस क्रिया के फलस्वरूप उत्पन्न अपार ऊर्जा विद्युत चुम्बकीय तरंगों के रूप में पृथ्वी तक आती है। ऊष्मीय विकिरण का तरंग दैध्र्य परास 8000Aº से 3 किमी0 तक जबकि प्रकाश की तरंग दैध्र्य 4000Aº से 8000Aº तक होती हैं।

Ans :- Herman Hollerith

The standard punched card, originally invented by Herman Hollerith, was first used for vital statistics tabulation by the New York City Board of Health and several states. After this trial use, punched cards were adopted for use in the 1890 census.

The presence of a cauliform group of bacteria in water bodies indicates contimination

Spirogyra always looks like thread. The most important feature is its spores, it is the best identification of spirogyra.

Therefore, student looks for spores in specimen in order to identify spirogyra.

Silver sulphide, copper carbonate coating is formed on Ag & Cu article