Questions

The chemical formula of Propane is

Which of these railway stations is a World Heritage Site?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

The aroma of the invigorate morning cup of tea comes (1)/ wafting up the stairway and soon I am (2)/ sipping it slowly and reverentially without rushing. (3)/ No error (4)

In this section, each of the following sentences has a blank space and four words are given below it. select the word or group of words you consider most appropriate for the blank space and indicate your response on the Answer Sheet accordingly.

He _________ the role of the organization in creating environmental awareness among the people.

Which of the following is not true about a Demand Draft?

In 2015, the nominal rate of interest in a country was 8% and the inflation rate then was 2.5%. So real rate of interest in 2015 was

Which one of the following statements about reusable space vehicle of ISRO is not correct?

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

Ants have been living on the earth for more than 100 million years and can be found almost anywhere on the planet. It is estimated that there are about 20000 different species of ants. For this reason ants have been called Earth's most successful species. If you watch ants for any length of time you will see that they really do communicate with each other and very effectively too. Ants communicate by touching each other with their antennae. Ants also use chemicals called pheromones to leave scent trails for other ants to follow. Ants build many different types of homes. Many ants build simple little mounds out of dirt or sand. Other ants use small sticks mixed with dirt and sand to make a stronger mound that offers protection from rain. Western Harvester ants make a small mound on top, but then tunnels up to 15 feet straight down to hibernate during winter. Ant mounds consist of many chambers connected by tunnels. Different chambers are used for nurseries, food storage, and resting places for the worker ants. Some ants live in wood like termites. Army ants don't make a home at all but travel in a large groups searching for food. Ants are social insects which means they live in large colonies or groups. Some colonies consist of millions of ants. There are three types of ants in each species, the queen, the sterile female workers and males. The male ants only serve one purpose, to mate with future queen ants and do not live very long. The queen grows to adulthood, mates, and then spends rest of her life laying eggs. A colony may have only one queen, or there may be many queens depending on the species. Ants go through four stages of development: egg, larva, pupa and adult.

What is the purpose of male ants ?