Question : Which hypothesis was proposed by Paul Ehrlich to suggest the importance of species richness in the maintenance of ecosystems?

Option 1: Portfolio hypothesis

Option 2: Redundancy hypothesis

Option 3: Predation hypothesis

Option 4: Rivet Popper hypothesis

Question : Directions: In the following question, arrange the following words as per their order in the dictionary.
1. Smoulder
2. Smother
3. Smuggle
4. Smudge

Option 1: 1, 2, 3, 4

Option 2: 1, 4, 3, 2

Option 3: 4, 3, 2, 1

Option 4: 2, 1, 4, 3

Question : Directions: In the following question, arrange the following words as per their order in the dictionary.
1. Intervention
2. Intertwine
3. Interview
4. Intervene

Option 1: 4, 3, 2, 1

Option 2: 2, 3, 4, 1

Option 3: 2, 4, 1, 3

Option 4: 3, 4, 1, 2

Question : Who propounded the Innovation theory of profits ? 

Option 1: J .A. Schumpeter 

Option 2: P .A. Samuelson 

Option 3: Alfred Marshall 

Option 4: David Ricardo 

Question : In the 1930s, which of the following theories was propounded by Arthur Holmes about the mantle?

Option 1: Theory of Faunal Succession

Option 2: Slab Pull Theory

Option 3: Convectional Current Theory

Option 4: Theory of Faulting