The word geography can be broken into the two basic elements of "GEO" and "GRAPHY." Geo comes from the Greek word for Earth (the word Gaea, also meaning earth, derives from the Greek as well). The "ography" part comes from the Greek word graphein, which is literally to write about something. The word "graph" derives from the same basis.

Thus GEO + GRAPHY literally means "to write about the Earth." We have commonly come to understand that the translation might also be taken as to describe and map the earth. The American Heritage dictionary defines geography as "the study of the earth and its features, inhabitants, and phenomena." I agree with the dictionary, but I like to tell my students that geography really is the study of how the world works in terms of the physical and human processes that occur everyday.

A free radical reaction is any chemical reaction which involves free radicals.

In the mechanism of a chemical reaction if the attacking reagent is free radical then that reaction mechanism is called free radical mechanism.

Example: Halogination of alkanes

Organic Chemistry It is a branch of chemistry which deals with the study of carbon-based compounds. It mainly applies to the study of the behavior, characteristics, compositions and the properties of the organic compounds. It is also known as The Chemistry of Life.
Inorganic Chemistry A branch of chemistry that deals with the study of metals and gaseous matter or materials which do not contain carbon as an element in it is called Inorganic chemistry. It is opposite side of Organic Chemistry.
Physical Chemistry The combined study of using physics and chemistry to explain chemical systems is called Physical chemistry. This branch relates to the physical properties along with the structure of matter and energy. The sub-branches coming under this field are quantum physics and thermodynamics.

Mineral absorption by plants :
(a) It occurs by apoplast and symplast pathways.
(b) It may be by diffusion, facilitated diffusion, osmosis active and passive uptake
(c) The minerals enter roots in bulk along stream of water under the influence of transpiration pull.
(d) Active salt absorption needs energy.

The number of degrees of freedom of a dynamical system is defined as the total number of co-ordinates or independent variables required to describe the position and configuration of the system.
Degrees of Freedom can be defined as independent displacements or rotations that specify the orientation of a body or system.

1. The British traders had been doing the trade in foreign countries for a long time. Thus they had accumulated sufficient capital which is the primary need for establishing the factories and industries.
2. England had plenty of natural resources like iron and coal which are essential for industries.
3. England had established a large number of new colonies from where she could get the cheap raw material. These colonies could also serve as best markets to sell their finished goods.
4. England had developed a large and big shipping industry which solved the problem of transporting the things to far away countries.
5. Due to Agrarian Revolution, many agriculturists went out of the job. Such people supplied the factory owners with cheap labour.

It may help you :

Adenosine Triphosphate (ATP) is an energy carrying molecule found in all living cells. An ATP molecule comprises of different components like adenine, ribose and three phosphates linked in a chain. The phosphates are linked by high energy phosphate bonds. Hence, ATP on dephosphorylation by ATPases yields energy. Energy is released due to breaking up of high energy phosphate bonds. Energy released by ATP is used to carry out different metabolic reactions of the body.

Postulates of Valence Bond Theory

• The overlapping of two half-filled valence orbitals of two different atoms results in the formation of the covalent bond. The overlapping causes the electron density between two bonded atoms to increase. This gives the property of stability to the molecule.
• In case the atomic orbitals possess more than one unpaired electron, more than one bond can be formed and electrons paired in the valence shell cannot take part in such a bond formation.
• A covalent bond is directional. Such a bond is also parallel to the region of overlapping atomic orbitals.
• Based on the pattern of overlapping, there are two types of covalent bonds: sigma bond and a pi bond. The covalent bond formed by sidewise overlapping of atomic orbitals is known as pi bond whereas the bond formed by overlapping of atomic orbital along the inter nucleus axis is known as a sigma bond.

Polarizing power can be defined as the ability of a cation to attract the electron cloud towards itself. Polarising power is proportional to charge/size. If the size of the cation is small, it will have more charge density and hence its polarising power increases whereas in anions with increase in its size polarisability increases. Also, higher the charge on a cation more is its polarizing power while higher the charge of an anion more is its polarisability.
The region of space around the nucleus which describes the probability of finding an electron of given energy in terms of dots is called an electron cloud.

Ornamental plants are grown for decorative purposes in gardens and landscape design projects, as house plants, for cut flowers and specimen display. Besides, ornamental plants play important role in human health and psychology. Human health depends on well-functioning ecosystems. 

List of Ornamental Plants

• Roses. Blooming rose bush. Roses have many different cultivars. ...
• Ornamental Bulb Plants. Daffodils. ...
• Trees. Weeping willow in the morning sun. ...
• Conifers. Juniper berries on the branch. ...
• Ornamental Shrubs. Lilac bush. ...
• Ornamental Grasses. Variety of ornamental grasses. ...
• Herbs. Lavendar. Ornamental Plants are also referred to as garden plants has beauty as its main trait. They are usually grown in the flower garden for the display of their flowers.It is a plant primarily grown for its beauty either for screening,accent, specimen, color or aesthetic reasons.

(23 + 13) - 0 + 333 (-789 + 799)
= (23 + 13) - 0 + 333 (10)
= 36 + 3330
= 3366

1. Drawer: Drawer is the person who makes the bill of exchange and is the person who has given credit to the person on whom the bill of exchange is drawn.
2. Drawee: Drawee is the person on whom the bill of exchange is drawn for acceptance. He is the purchaser of the goods/services to whom the credit has been granted by the drawer.

Phyllotaxy is the arrangement or distribution of leaves on the stem or its branches in such a way that they receive maximum sunlight to perform photosynthesis. Phyllotaxy is of three types :
1.Alternate or Spiral: In this type, a single leaf arise at each node in an alternate manner, e.g. Hibiscus rosa sinensis.
2.Opposite : Two leaves are borne from the node in opposite directions. It is of two types : (i) Opposite Superposed: e.g., Quisqualis. (ii) Opposite Decussate: e.g., Calotropis.
3.Whorled or Verticullate: More than two leaves are borne on a node, which form a whirl.