Consider the following transient physiological changes:

1. Increase in blood pressure.
2. Decrease in intracranial pressure.
3. Dilatation of the pupils.
4. Increase in breathing rate.

Which of the above changes transiently occur in a person exposed to noise pollution?

A kind of harmful chemical substances known as phthalates sometimes in the news. Which of the following statements is/are correct regarding them?

1. They are extensively used in the manufacture of paints and varnishes.
2. They are used in the manufacture of toys.
3. They interfere with the development of reproductive system.
4. They are toxic to liver and thyroid glands.

Select the correct answer using the code given below:

With reference to the demographic profile of India, consider the following statements:

1. The proportion of the population in the age group 0-6 declined from 16% to 13% over the period 2001-11.
2. Of all the states, 20 states have achieved replacement level fertility.
3. As per 2011 census, there has been a significant inflow of migration to many southern states.

Which of the statements given above is/are correct?

Who is the Chairman of the National Disaster Management Authority in India?

Consider the following statements with regard to the PNDT [Pre-Natal-Diagnostic Techniques (Regulation and Prevention of Misuse)] Act:

1. It prohibits all organizations and persons from selling and renting ultrasound or imaging machines to any institution or person unless they are registered under the Act.
2. It makes it mandatory upon a Genetic Centre, Laboratory, Ultrasound Clinic to display prominently an undertaking that they do not conduct any test or procedure for detection of sex or foetus.
3. It makes it mandatory upon every Genetic Centre, Laboratory, Ultrasound Clinic to maintain a register showing in serial order, the names and addresses of the clients who report for pre-natal counselling or diagnostic tests.
4. It makes it mandatory that only sonologists/radiologists having a PG degree or PG diploma in sonography/radiology should conduct the ultrasound or imaging studies.

Which of the above are the provisions given in the PNDT Act?

The following agents are known leukaemogens except