NTSE Stage II 2015 Objections in the Official Answer Key

I think there are corrections in the NTSE Stage II 2015 Official Answer Key

I have objections on Q.No. 63, 81, 85 & 94 of SAT 

Q.No. 63, Assertion (A) : By the early twentieth century, America became the biggest supplier of wheat to Europe

Reason (R) : The expansion of the railways during the period greatly facilitated the transport of grain

1. A is true, R is false                 2. A is false, R is true

3. Both A and R are true but R us not the correct explanation of A

4. Both A and R are true R is the correct explanation of A 

answer given by NCERT is option 3

my answer is 4

On Page no.127,Chapter - Peasants and Farmers, Topic - The Wheat Farmers

it is clearly written - The spread of the railways made it easy to transport the grain from the wheat-growing regions to the eastern coast for export. By the early twentieth century the demand became even higher, and during the First World War the world market boomed. Russian supplies of wheat were cut off and the USA had to feed Europe

so option 4. Both A and R are true and R is the correct explanation of A

should be the correct answer

Q.No. 81. Which one of the following states has common borders with the least number of countries ?

1. Uttarakhand        2. West Bengal        3. Arunachal Pradesh     4. Sikkim          

Answer given by NCERT is option 2

my answer is option 1

Map on Page no. 05, Chapter - India Size and Location (Geography, Class IX) clearly shows that 

Uttarakhand has common borders with China and Nepal

West Bengal has common borders with Bangladesh, Bhutan and Nepal

so the answer should be option 1. Uttarkhand

Q.No. 85. Match List I (Rivers) with List II (Origin) and select the correct answer using the codes given below

List I (Rivers)                                     List II (Origin)

A. Godavari                                      I. Cardamom Hills

B. Krishna                                        II. Amarkantak Hills

C. Narmada                                      III. Nasik Hills

D. Vaigai                                          IV. Mahabaleshwar

1. A(IV), B(III), C(I), D(II)                   2. A(III), B(IV), C(II), D(I)

3. A(I), B(II), C(IV), D(III)                   4. A(II), B(I), C(III), D(IV)

Answer given by NCERT is option 1.

my answer is option 2.

On Page No.21, Chapter - Drainage (Geography, Class IX)

its clearly mentioned

Godavari rises from the slopes of the Western Ghats in the Nashik District of Maharashtra

Krishna rises from a spring near Mahabaleshwar

Narmada rises in the Amarkantak Hills in Madhya Pradesh

Q.No. 94. Which of the following issues has been most successfully addressed by the Indian democracy ?

1. Social inequality                                   2. Economic inequality

3. Political inequality                                4. Natural inequality

Answer given by NCERT is option 3

my answer is option 1

Page no. 96, 97 & 98 of Chapter - Outcomes of Democracy (Civics, Class X)

has the heading 

Accommodation of social diversity, Dignity and Freedom of the Citizens

on Page no. 98, its clearly written - Democracy in India has strengthened the claims of the disadvantaged and discriminated castes for equal status and equal opportunity. 

According to the above lines, option 1. Social inequality should be the correct answer       

or Option 1 and Option 3. both should be considered as correct answer