What is the maximum permissible time gap between two sessions of parliament ?

Strait of Hormuz connects:

Many features of the Indus Valley civilization show its organized nature of the internal distribution network. Which among the following is / are included in such features?

1. Standardized system of weights and measures
2. Wooden carts drawn by Oxen
3. Pottery making by specialized potters

Select the correct option from the codes given below:

Which of the following is are correct statements?

1. Bats, Dogs as well as Dolphins can perceive the frequency range of more than 20,000 Hz
2. Bats detect the obstacles in their path by receiving the reflected infrasonic waves

Select the correct option from the codes given below:

Consider the following pairs:

1. Sublimation - Solid to the gas phase 
2. Ablation - Removal of material from the surface of an object
3. Deposition - Gas changes directly into a solid

Which of the above is/are correct?