Collection of verified questions for Pradushan Evam Uske Prakar under Environment & Ecology. Includes previous year exam questions with official answer keys and step-by-step solutions.
Highest concentration of B.O.D. in river Ganga is found-
Consider the following statements and choose the correct option below: 1. Presence of large amounts of nutrients in water leads to excessive growth of planktonic algae. 2. Algal blooms cause deterioration of water quality and fish mortality.
Where is water pollution caused by arsenic highest among the following?
In which country is naturally arsenic-contaminated groundwater prominently found?
Which of the following rivers is called a 'biological desert' due to its pollutants?
Which of the following rivers in India is termed a 'biological desert'?
With reference to bio-toilets used by the Indian Railways, consider the following statements: 1. The decomposition of human waste in the bio-toilets is initiated by a fungal inoculum. 2. Ammonia and water vapour are the only end products of this decomposition which are released into the atmosphere. Which of the statements given above is/are correct?
Which of the following rivers of Uttar Pradesh was declared a 'biological disaster' due to environmental pollution?
Which of the following are found as pollutants in the drinking water in some parts of India? 1. Arsenic 2. Sorbitol 3. Fluoride 4. Formaldehyde 5. Uranium Select the correct answer using the code given below:
'Knock-knee syndrome' is caused by–
In which metropolitan city of India was the highest annual per capita solid waste generated (at the time of the question)?
As per the Solid Waste Management Rules, 2016 in India, which one of the following statements is correct?
Acid rain is caused by environmental pollution due to which of the following?
Which of the following causes acid rain?
Which of the following environmental pollutants are responsible for 'acid rain'?
Which acid is present in acid rain?
'Acid rain' contains which of the following?
The component(s) of acid rain is/are–
Consider the following: 1. Carbon monoxide 2. Nitrogen oxide 3. Ozone 4. Sulphur dioxide Which of the above is/are cause(s) of acid rain?
The most polluted city of India (at the time of the question) was-
According to the report released by Greenpeace India in January 2020, which of the following is the most polluted city out of 287 cities in India?
A polluted atmosphere is naturally cleansed by which of the following?
In which city/state was the 'WAYU' (Wind Augmentation PurifYing Unit) air pollution control device inaugurated in September 2018?
The 'Asian Brown Cloud, 2002' was mostly spread over-
Assertion (A): Air pollution levels remain high in Delhi during winter. Reason (R): Combustion process in motor vehicles increases during winter. Select the correct answer from the code below: