Which layer of Earth's atmosphere is closest to the

In these questions, relationship between different elements is shown in the statements. These statements are followed by two conclusions.

Statements: R ≥ S; T = U < O; R ≥ O; V > T

Conclusions:

I. V > O

II. R > T

III. S > V

Statements: M < N = G > P, P ≥ Z ≥ Y

Conclusions:

I. N > Y

II.G > M

Statements: A ≥ B > C ≥ D < E < F < G

Conclusions: I.    A > D                       II. G > C

Statements : Z < S < W < D; E ≤ C ≤ Y < D; U < T < S ≤ V

Conclusions :

I. V > Z

II. C < U

III. V > E

Which of the following expressions will be true if the expression P > Q = R < S = T ≤ U = V is definitely true?

Statements:       A @ D % M % N; M $ P $ Q

Statements: H > E > I < F; D < I ≤ J; G < N ≤ D

Conclusions:  

I. N < H  

II. F ≥ G