The triangular slave trade was conducted between Europe, Africa and the Americas. Since the 17th century, French merchants travelled from the ports of Bordeaux and Nantes to Africa where they bought slaves from the local chieftains. From there, the slaves were branded, shackled and sent off to the Carribean to be sold off to the plantation owners there. Such exploitation of the slaves from Africa made it possible for the European markets to flourish with commodities like sufar, indigo and coffee.

The best-known triangular trading system is the transatlantic slave trade, that operated from the late 16th to early 19th centuries, carrying slaves, cash crops, and manufactured goods between West Africa, Caribbean or American colonies and the European colonial powers, with the northern colonies of British North .

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Samsuddin is cousin of A.P.J Abdul Kalam.

Abdul help his cousin samsuddin as after first world war the train at rameshwaram refuse to stop so samsuddiin was a newspaper distributer on the rameshwaram station Abdoul cath all the newspaper thrown from moving train. Samsuddin find Abdoulas a helping hand

 Mass of an object= the gravitational constant/ weight of the object.
The mass of an object whose weight in 196n is going to be 19.6 kg if the gravitational constant is taken to be 10g.
And it is 20 kg, in case the gravitational constant is taken to be 9.8 g.

Aariz right answer

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Page No 56: Question 1: Construct Δ∆ PQR,  in which ∠∠Q = 70∘70°,  ∠∠R = 80∘80° and PQ + QR + PR = 9.5 cm. ANSWER:  Steps of construction: (1) Draw seg AB of 9.5 cm length. (2) Draw a ray making angle of 35° at point A. (3) Draw another ray making an angle of 40° at point B. (4) Name the point of intersection of the two rays as P. (5) Draw the perpendicular bisector of seg AP and seg BP. Name the points as Q and R respectively where the perpendicular bisectors intersect line AB. (6) Draw seg PQ and seg PR. Therefore, △PQR is the required triangle.  Page No 56: Question 2: Construct Δ∆ XYZ, in which ∠∠Y = 58∘58°, ∠∠X = 46∘46° and  perimeter of triangle is 10.5 cm. ANSWER:  Steps of construction: ​ (1) Draw seg PQ of 10.5 cm length. (2) Draw a ray making angle of 29° at point P. (3) Draw another ray making an angle of 23° at point Q. (4) Name the point of intersection of the two rays as Z. (5) Draw the perpendicular bisector of seg PZ and seg QZ.  Name the points as Y and X respectively where the perpendicular bisectors intersect line PQ. (6) Draw seg XZ and seg YZ. Therefore, △XYZ is the required triangle.  Page No 56: Question 3: Construct Δ∆LMN, in which ∠∠M = 60∘60°, ∠∠N = 80∘80°  and  LM + MN + NL = 11 cm. ANSWER:  Steps of construction: ​ (1) Draw seg AB of 11 cm length. (2) Draw a ray making angle of 30° at point A. (3) Draw another ray making an angle of 40° at point B. (4) Name the point of intersection of the two rays as L. (5) Draw the perpendicular bisector of seg AL and seg BL.  Name the points as M and N respectively where the perpendicular bisectors intersect line AB. (6) Draw seg LM and seg LN. Therefore, △LMN is the required triangle.  Page No 56: Question 1: Construct Δ∆ XYZ, such that  XY + YZ  =10.3 cm,  YZ = 4.9 cm, ∠∠XYZ = 45∘45° .   ANSWER:  Steps of constructions: (1) Draw seg YZ of length 4.9 cm. (2) Draw ray YV such that ∠ZYA = 45°. (3) Mark point W on ray YA such that YB = 10.3 cm (4) Draw seg BZ. (5) Construct the perpendicular bisector of seg BZ . (6) Name the point of intersection of ray YA and the perpendicular bisector of BZ as X. (7) Draw seg XZ. Therefore, △XYZ is the required triangle. Page No 56: Question 2: Construct Δ∆ ABC, in which ∠∠B = 70∘70°, ∠∠C = 60∘60° , AB + BC + AC = 11.2 cm. ANSWER:  Steps of construction: ​ (1) Draw seg XY of 11.2 cm length. (2) Draw a ray making angle of 35° at point X. (3) Draw another ray making an angle of 30° at point Y. (4) Name the point of intersection of the two rays as A. (5) Draw the perpendicular bisector of seg AX and seg AY.  Name the points as B and C respectively where the perpendicular bisectors intersect line XY. (6) Draw seg AB and seg AC. Therefore, △ABC is the required triangle.  Page No 56: Question 3: The perimeter of a triangle is 14.4 cm and the ratio of lengths of its side is 2 : 3 : 4. Construct the triangle. ANSWER:  Steps of construction: 1: A line AB = 14.4 cm is drawn. 2: Darw a ray AC making an acute angle at A in the downward direction. Then, divid it into (2 + 3 + 4) = 9 parts. 3: Join B and A9. 4:  Draw a line parallel to BA9 at A2 and A5 intersecting AB at X and Y respectively.. 5: With X as centre and XA as radius, draw an arc. 6: With Y as centre and YB as radius, draw an arc cutting the previous arc at Z. 7: Join XZ and YZ. Hence, △XYZ is the required triangle. Page No 56: Question 4: Construct Δ∆ PQR, in which PQ −- PR = 2.4 cm, QR = 6.4 cm and ∠∠PQR =

1 .Cobalt- treatment of cancer. 2.iodine-treatment of goiter.

An isotope of cobalt is used in the treatment of cancer.

An isotope of iodine is used to treatment of goiter.

Three examples to show the contribution of culture to the growth of nationalism in Europe were:

•  Romanticism was a European cultural movement aimed at developing national unity by creating a sense of shared heritage and common history. The Romantic artists' emphasis on emotions, intuition and mystical feelings gave shape and expression to nationalist sentiments. The strength of art in promoting nationalism is well exemplified in the role played by European poets and artists in mobilising public opinion to support the Greeks in their struggle to establish their national identity.
•  Folk songs, dances and poetry contributed to popularising the spirit of nationalism and patriotic fervour in Europe. Collecting and recording the different forms of folk culture was important for building a national consciousness. Being a part of the lives of the common people, folk culture enabled nationalists to carry the message of nationalism to a large and diverse audience. The Polish composer Karol Kurpinski celebrated and popularised the Polish nationalist struggle through his operas and music, turning folk dances like the polonaise and mazurka into nationalist symbols.
• Language also played a distinctive role in developing nationalist feelings in Europe. An example of this is how during Russian occupation, the use of Polish came to be seen as a symbol of struggle against Russian dominance. During this period, Polish language was forced out of schools and Russian language was imposed everywhere. Following the defeat of an armed rebellion against Russian rule in 1831, many members of the clergy in Poland began using language as a weapon of national resistance. They did so by refusing to preach in Russian, and by using Polish for Church gatherings and religious instruction. The emphasis on the use of vernacular language, the language of the masses, helped spread the message of national unity.

Wo is priminister

(1/3)-²-(1/9)-²

= 3² - 9²

= 9 - 81

= - 72

Urbanization:

Urbanization refers to the population shift from rural to urban areas. The process of urbanization affects all sizes of settlements, so villages gradually grow to become small towns, smaller towns become larger towns, and large towns become cities. This trend has led to the growth of mega-cities.

Deurbanisation:

Deurbanisation is the process in which people move from the urban areas to rural areas.

Industries are being established outside the city because of  more affordable cost and the taxes and insurance at a cheaper price and also more people to work than in Urban Areas.

 

Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because of two reasons.

(i) Like the other connective tissues, blood is mesodermal in origin.

(ii) It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it.

The cells of nervous tissue are highly specialized and the cells of this tissue are called nerve cells or neurons.

• Nervous tissue stimulates and transmits the stimulus very rapidly from one place to another within the body.
• The brain, spinal cord and nerves are composed of the nervous tissue.
• A neuron consists of a cell body which comprises of nucleus and cytoplasm, from which long thin hair-like parts arise.
• The neuron has a single long part, called the axon, which transmit the nerve impulse to body parts.
• The neuron has short, branched parts called dendrites.
• Many nerve fibers combine together by connective tissue and form a nerve.
• Nerve impulse enables animals to move rapidly in response to stimuli.

ANSWER

Muscle tissue is a soft tissue that composes muscles in animal bodies and gives rise to muscles' ability to contract. 

There are mainly three types of muscle tissue:-

1)Skeletal(Striated) Muscle:
Structure: Skeletal muscle is called "striated" because of its appearance consisting of light and dark bands visible using a light microscope. A single skeletal muscle cell is long and approximately cylindrical in shape, with many nuclei located at the edges (periphery) of the cell.

Function: 

• Movement of the skeleton under conscious control, including movement of limbs, fingers, toes, neck, etc.
• Movement of tissues of facial expression under conscious control, e.g. ability to smile and to frown.

2)Smooth(Non-Striated) Muscle:

   Structure: Unlike Skeletal and Cardiac muscle tissue, Smooth muscle is not striated. Smooth muscle fibres are small and tapered - with the ends reducing in size, in contrast to the cylindrical shape of a skeletal muscle. Each smooth muscle fibre has a single centrally located nucleus.

   Function: Contractions of smooth muscle constrict (i.e. narrow = reduce the diameter of) the vessels they surround. This is particularly important in the digestive system in which the action of smooth muscle helps to move food along the gastrointestinal tract as well as breaking the food down further. Smooth muscle also contributes to moving fluids through the body and to the elimination of indigestible matter from the gastrointestinal system.

3)Cardiac(Semi-Striated) Muscle:

   Structure: Cardiac muscle fibers are striated, branched (sometimes described as Y-shaped), and have a single central nucleus. These fibers are attached at their ends to adjoining fibers by thick plasma membranes called intercalated discs.

   Function: Pumping of blood through the heart: Alternate contraction and        relaxation of cardiac muscle pumps

De-oxygenated blood through the Right Atrium and Right Ventricle to the lungs, and oxygenated blood through the Left Atrium and Left Ventricle to the aorta, then the rest of the body.   

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The default return value is NONE.

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S.No	Microeconomics	Macroeconomics
1.	Microeconomics studies individual economic units	Macroeconomics studies a nation’s economy, as well as its various aggregates.
2.	Microeconomics primarily deals with individual income, output, price of goods, etc.	Macroeconomics is the study of aggregates such as national output, income, as well as general price levels.
3.	Microeconomics focuses on overcoming issues concerning the allocation of resources and price discrimination.	Macroeconomics focuses on upholding issues like employment and national household income.
4.	Microeconomics accounts for factors like demand and supply of a particular commodity.	Macroeconomics account for the aggregated demand and supply of a nation’s economy.
5.	Microeconomics offers a picture of the goods and services that are required for an efficient economy. It also shows the goods and services that might grow in demand in future.	Macroeconomics helps ensure optimum utilisation of the resources available to a country.

Answer:
The cells formed by meristematic tissue take up a specific role and lose their ability to divide. As a result, they form a permanent tissue. This process of taking up a permanent shape, size and function is called differentiation.

Glandular epithelium is a type of epithelial tissue which covers the glands (both exocrine and endocrine) of our body. Their main function is secretion. Both endocrine and exocrine glands produce their secretions through the glandular epithelium via special cells called goblet cells. Glandular epithelium in the reproductive tract is called endocervical glandular epithelium and helps in sexual functions by secreting lubricating fluid during sexual excitation. The glandular epithelium also lines the intestine where it helps in the absorption of nutrients. Thus it aids in digestion. Thus glandular epithelium is a multifunctional tissue that combines with other tissues to perform vital functions of the body.

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