The degree of x2 – 5x + 2 = x3 is:​

 x2 – 5x + 2 = x3

x2 - 5x + 2 - x3 = 0

-x3 + x2 - 5x + 2 = 0

If we change the sign of these equation then,

x3 - x2 + 5x - 2 = 0

Ans:- 3  

Note: The degree is the value of greatest exponent of any expression.

A body is falling freely, the total energy of the body as it falls

 (A) Increases

(B) First decrease then increase

(C) Remains same 

(D) First increases then decreases

Ans:- (C) Remains same

The money receivable from a customer, to whom business sold goods on credit is called

 a) Creditor

 b) Debtor

 c) Wholesaler

 d) Retailer​

 Ans:- b) Debtor

Find A: C, if A:B = 7:8 and B:C = 16:21

 Solution:-

A:B = 7:8   is written as   A/B = 7/8

B:C = 16:21 is written as  B/C = 16/21

We have to find A:C = ? 

A:C is written as  A/C

A/C = A/B × B/C

A/C = 7/8 × 16/21

A/C = 2/3

A:C = 2:3

Ans:- A:C = 2:3

Add the following terms -2mm, 4 mn, - 6 mn

=  mn - 2mm + 4mn - 6mn

=  -2mm + mn (1 + 4 - 6)

=  -2mm + mn (-1)

=  -2mm - mn

Ans:-  -2mm - mn

The product of the place value of 5 and 6 in 70560

Option:

1) 30

2) 300

3) 3000

4) 30000

Ans:- 4) 30000

Explanation:- Place value of 5 = 500

         

                      Place value of 6 = 60

                      Product of Place value = 500 × 60

                                                   

                                                        Ans   = 30000

Write true or false. Correct and rewrite the statement if false

 Write true or false. Correct and rewrite the statement if false: 

a) Oxygen produced during photosynthesis comes from Carbon dioxide:- True

b) Connective tissue provides insulation to the animal body:- True

c) Adding iodine solution to the leaf removes chlorophyll from it:- True

d) In a dicot leaf, both upper and lower epidermis contains stomata:- False

Statement:- Becausce in dicot leaf the stomata are found only on the underside of the leaf

e) Spongy mesophyll cells perform the maximum amount of photosynthesis:- False 

Statement:- Becausce spongy mesophyll cells do not contain as many chloroplasts as those found in palisade cells.

Find out the mis –match in the following

 A) Nemathelminthes – Pesudocoel

B) Arthropoda –Haemocoel

C) Chordata – Enterocoel

D) Platyhelminthes – True coelom

Ans: C) Chordata – Enterocoel

Did animals emit radio waves just like humans emit infrared ?

 Of course yes ! As we like emit infrared radiation same as animal also emit.

Why animal also emit radiation like human ?

first of all we try to know that what is the difference between animal and human.!

i)  Human is intelligent than animals.

ii) Animals are so stronger than human.

But both have physical body like 1) Bones

                                                     2) Blood

                                                     3) Cell

                                                     4) Skin

                                                     5) Brain...etc

So thats why animals also emits radio waves just like humans emit infrared radiation.