World's largest drainage basin

 Amazon basin in South America is world's largest drainage basin.

It covers an area about 7 million square kilometer     !!!!

The basin collects water from rainfall and streams all of which will flow into Amazon river.

Countries covered by Amazon basin   -----

1.   Brazil 

2.  Peru

3.  Columbia 

4.  Bolivia 

5.  Venezuela 

6.  Ecuador 

7.  Guyana 

Mysterious places in Asia

 1.   Aokigahara Forest , Japan 

                      It is known as sea of trees at the foot of mount fuji.

2.  Roopkund Lake, India 

                     It is known as  skeleton lake.

3.  Plain of Jars, Laos 

                   Thousands of giant stone jars are scattered across the fields.

4.  Yonaguni monument, Japan 

             It has under water rock formation.

5.   Mount  Osore ,  Japan 

              It is known as  gateway to afterlife.

Innocent looking animals that actually bite hard !!!

 Some animals are often underestimated because of their cute appearances or small size.

But when threatened, they can bite really hard  !!!

Such animals are  ----

1.  Beaver 

2.  Dolphin 

3.  Parrot

4.  Kangaroo 

5.  Swan

6.  Panda

Differences between turtle and tortoise

 1.  Tortoises are land dwelling reptiles with heavy and domed shells while

        Turtles are aquatic or semi aquatic.

2.  Tortoises are herbivores 

      Turtles are omnivores 

3.   All tortoises are turtles

      But all turtles are not tortoises 

4.   Tortoises have longer lifespans 

       Turtles have comparatively shorter ones

5.  Tortoises have column like legs to support their weight on land.

      Turtles have adapted themselves for swimming.

Bheja Fry question

 Question 

The product  of  2 numbers is  120. Sum of their square is 289. What is the sum of these 2 numbers ??

Answer 

Let the two numbers be  x and y.

According to data,     x  *    y    =  120

And    x^2   +    y^2    =     289

By looking at given equations,  we can conclude

(  x  +   y  )^  2  =     x ^ 2  +   y ^  2  +   2xy

Here we know    x  *  y  =  120

                                x ^ 2   +   y ^2  =  289

Thus the above equation becomes,

(  x  +  y  ) ^ 2  =  x ^2  +  y ^ 2 +  2xy

==>>   (  x  +  y  ) ^ 2  =  289  +  2 * 120

==>>   (  x  +  y  ) ^ 2  =   289  +  240

==>>  (  x  +  y  ) ^ 2  =  529

Taking sqrt on both the sides,

==>>  (  x  +   y  )  =   sqrt  529

==>>  (  x  +   y  )  =  239

Now we have    x+ y  =   23  and  xy  =  120

Checking different values of x and y resulting in sum of 23 and product of  120 

We figure out,

                   

                          8  *  15  =   120

                          8  +   15  =  23

The numbers are   8  and   15   !!!