GATE Environmental Science Mock Test - 5 - GATE Environmental Science MCQ

The present population of a city stands at 11,02,500. If it has been growing at an annual rate of 5%, what was the population of the city two years prior?

If p and q are positive integers such that p/q q/p equals 3, what is the value of p²/q² q²/p²?

In the year 2000, the incomes of Companies X and Y were in the ratio of 3 : 4. What was the corresponding ratio of their expenditures for the same year?

Two trains, A and B, depart simultaneously from the stations of Mumbai and Bengaluru respectively, traveling towards each other. After they meet, it takes them 12 hours and 3 hours to arrive at Mumbai and Bengaluru respectively. Given that train A travels at a speed of 56 km/hr, what is the speed of train B?

Below are two statements followed by two conclusions.
Statement 1: Every purple is green.
Statement 2: Every black is green.
Conclusion I: Some blacks are purples.
Conclusion II: No black is purple.
Based on the statements and conclusions provided, which of the following options is logically INCORRECT?               

Computers are everywhere in modern life, enhancing efficiency across various domains, including agriculture and space exploration. Currently, artificial intelligence (AI) is a prominent topic of discussion. AI allows computers to learn when provided with sufficient training data. Prolonged periods of computer use can result in health problems for humans.
Which of the following conclusions can be drawn from the passage above?

(i) Today, computers are found in nearly all environments.

(ii) Computers are not applicable for addressing engineering challenges.

(iii) The use of computers has both beneficial and detrimental effects on humans.

(iv) Artificial intelligence can function independently of data.

Consider a square sheet with a side length of 1 unit. In the initial step, it is sliced along the primary diagonal, resulting in two triangular sections. In the following step, one of these triangular sections is rotated around its shorter edge to create a solid cone. The volume of the resulting cone, measured in cubic units, is ________

What is the primary aim of the Earth Summit held in Rio de Janeiro?

The process of treating solid waste through pyrolysis entails:

The measurement of ozone thickness is expressed in:

A tangent line is drawn to the curve of the function y = x² at the point (x, y) = (3, 9). What is the slope of this tangent line? ____________.

The following table illustrates the carbon content present in four different samples of powdered coal. If these samples are thoroughly combined, what would be the carbon percentage of the resulting mixture by weight?

In which location does the electron transport chain occur?

In which unit is the thickness of the ozone layer quantified?

According to the Biomedical Waste Handling Rules 2016, what is the total number of categories for Biomedical waste?

Consider the following statements:
I. The aim of Life Cycle Analysis (LCA) is to evaluate the environmental effects of products from a holistic viewpoint and to pinpoint potential strategies for enhancement.
II. Environmental Impact Assessment (EIA) is described as the process of recognizing, forecasting, and assessing the probable effects of a proposed project or development to establish mitigation measures that lessen adverse effects and to offer beneficial contributions to the natural environment and public well-being.
The correct choice is 

For the key environmental legislation in India listed below:

i) Environmental Protection Act

ii) Water Act (Prevention and Control of Pollution)

iii) Air Act (Prevention and Control of Pollution)

iv) The National Green Tribunal Act

what is the correct sequence of their enactment from the oldest to the most recent?

The kinematic viscosities of glycerin and kerosene are 1.2 times and 0.95 times that of water, respectively. Both glycerin and kerosene are flowing through two identical porous media with the same hydraulic gradient. Assuming that Darcy’s law applies to the porous media, what is the ratio of the flow rate of kerosene to that of glycerin?

What is the most favored ideal measure in the hierarchy of Integrated Solid Waste Management (ISWM) for handling municipal solid waste?

In accordance with the BMW handling regulations of 2016, which type of waste is required to be disposed of in the Black bag?

What is the minimum thickness of compostable carry bags as recommended in the Plastic Waste Management Rules of 2016?

Which of the following organic compounds contribute to environmental pollution in recent times?

Which of the following theories addresses the balance between the availability of resources and their consumption?

What are the pollutants that can be classified as secondary air pollutants?

According to the Hazardous Waste (Management and Handling) Rules, 2016, in India, what is/are the characteristic(s) that a waste must demonstrate to be categorized as 'characteristic' hazardous waste?

Which of the following statement(s) are correct?

Note: This is a multiple select question; one or more options may be correct.