. Verify whether 1024 is a perfect square or not.​

Answer:

Simplify:

(x+y+z)² + (x-y+z)²

(2a+b-c)²-(2a-b+c)²

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Step-by-step explanation:

Simplify:

(x+y+z)² + (x-y+z)²

(2a+b-c)²-(2a-b+c)²

please help me because it is very important Simplify:

(x+y+z)² + (x-y+z)²

(2a+b-c)²-(2a-b+c)²

please help me because it is very important question

Answer:

We know that (x+y+z)

2

=x

2

+y

2

+z

2

+2xy+2yz+2xz

Substitute p for x, 2q for y and r for z in the above formula,

(p+2q+r)

2

=(p)

2

+(2q)

2

+(r)

2

+2(p)(2q)+2(2q)(r)+2(p)(r)

=p

2

+4q

2

+r

2

+4pq+4qr+2pr

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Q. What are oxbow lakes and how it is formed ?

Ans - Oxbow lake is a small lake located in an abandoned meander loop of a river channel. They are U-shaped or curved bends in a river that are cut off from the main river flow, forming a lake. Every river contains twists and turns or meanders, that cut through the surrounding landscape in a unique way. Due to continuous erosion and deposition along the sides of the meanders, the end of the meander loop comes closer and closer. In due course of time, the meander loops cut off from the river forming a lake called oxbow lake.

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Answer:

An oxbow lake starts out as a curve, or meander, in a river. A lake forms as the river finds a different, shorter, course. The meander becomes an oxbow lake along the side of the river. Oxbow lakes usually form in flat, low-lying plains close to where the river empties into another body of water

Answer: Heredity refers to the genetic inheritance received by every individual at the time of conception. The origin of every human life can be traced to a single cell called zygote. It is formed by the union of sperm and ovum.

Like heredity, environment also has been found to play a very important role in determining the behaviour and personality development of an individual. The environmental influences are those which act upon the organism at the earlier stages of development, i.e., before and also after birth.

Environment includes all the extrinsic forces, influences and conditions which affect the life, nature, behaviour, the growth, development and maturation of living organism.