Directions (84): In questions given below, out of the four alternatives, choose the one which can be substituted for the given words/ sentence.
The scientific study of the behavior, structure, physiology, classification, and distribution of animals          

The time period of a pendulum – 

Which of the following state governments unveiled the Ayush Kavach app that will provide health-related tips and information about ayurvedic medicines amid the COVID-19 pandemic?

Which of the following runs on computer hardware and the other Provides a platform to run the software?

A tourist drives 10 km. towards west and turns to left and takes a drive of another 4 km. Then he drives towards east another 4 km and then turns to his right and drives 5 km. Afterwards he turns to his left and travels 6 km. In which direction is he from the starting point? 

In which schedule of the Indian Constitution are the names of Union territories listed? 

Who has been appointed as the new Cabinet secretary?

What is the product formed when sodium bicarbonate is heated strongly?