Biology 12th Class Chapter 27 Man and his Environment Solved MCQs Download

Biology 12th Class Chapter 27 Man and his Environment Solved MCQs Download.The relationship between Man and his Physical Setting MCQs For The Second Year Of Biology Chapter 27 Multiple choice questions (MCO’s) . Including significant in-depth questions from the second year of Biology chapter 27. These multiple choice questions come with answer keys.

Multiple choice questions on man’s impact on the environment:

The average temperature of the surface water in the oceans around tropical areas is approximately: (LHR. GRW. 2014 (A) S°C (B) -5°C (C) 25°C\s(D) Weather

A wealth of different sorts of resources that are necessary for the continued existence of life on earth: (SWL GI, 2016 MRWP.247,
The nuclear power plant has a limited lifespan of approximately: (BWP. GI, 2016) (SGD. 2017
(B) The environment, followed by (A) water and (C) land (D) None of the preceding

The name for the air that is moving is: (BWP, GI, 2014)

(SWL 2013, (A) the atmosphere, and (B) the wind

About ninety-five percent of our day-to-day need for energy is met by: (SGD. GI, 2015) (A) nuclear energy (B) hydroelectric power (C) geothermal energy (D) geothermal energy (E) Fossil Fuels

Which one of the following is an example of a source that may be renewed? (FBD.GI, 2015 (A) Air and Oil; (B) Water and Oil; (C) Oil and Natural Gas; (D) Air and Water;

(SWL. GI, RWP. GI,2017) The following constitutes the uppermost layer of the earth’s crust: (A) Rock (B) Sand (C) Soil (D) Clay

The following are the primary causes of the extinction of species: (LHR. GI, 2017
(A) The Human Population (B) Excessive Human Population (C) The Destruction of Habitat (D) Parasitism

Species that face a very high risk of going extinct within their natural range are referred to as: (SGD. G1, 2017
A species considered vulnerable, B species considered threatened, C species considered rare, and D species considered endangered

About 32.5 million people called Pakistan home when it gained its independence in 1947, according to estimates from the GRW.GI, FBD. GI. 2014/SGD. GI, 2016. (B) 50 million (C) 150 million (D) 180 million

The study of human populations and the factors that have an effect on them is referred to as the following: (SGD. GI, 2014)

(LHR. GII, 2015)

(DGK. GI, 2016)

(RWP. GIL, 2017
(A) Human Biology (B) Sociobiology\s(C) Demography\s(D) Teratology

There is a forecast that the global population will roughly double by the following years: (BWP. GI, 2017 A) 2020 B) 2030 C) 2040 D) 2050

Which of the following components acts as a buffer for the environment? (SWL. GI, DGK. GII, 2014,(LHR. GII, 2016 (A) Desert (B) Land Cover: Grassland (D) Forest

The creation of new forests in areas where there were not previously any woods is referred to as: (MLN. GI, DGK. GI, 2015
(A) The cutting down of trees (B) (A) Deforestation (B) Forestation (C) Afforestation (D) Desertification

The following are some of the factors that are contributing to the thinning of the ozone layer: (DGK. GI, 2016) (RWP. G1, 2017 A) Chlorofluorocarbon\s(B) Nitrogen\s(C) Chlorine\s(D) Carbon Dioxide

Moving carts and air conditioners are the primary sources of CFC emissions, according to LHR.GI, 2017.

The uppermost layer of the atmosphere contains ozone, which filters: 2017 (A) infrared radiation (B) ultraviolet radiation (C) beta radiation (MLN. GI, 2016SWL GI. 2017 (D) Radiation

Three atoms of nitrogen, oxygen, and fluorine are bound together to form an ozone molecule (MLN. GI, 2018). (A) Oxygen. (B) Nitrogen. (C) Fluorine.

Certain types of detergents have high concentrations of: (FBD. GI, 2016)
A is for sulphur, B is for carbon, C is for phosphate, and D is for carbonates.

When CFCs are released into the atmosphere, ultraviolet light produce the following: (RWP. GI, 2014)
A is for chlorine, B for carbon, and C for oxygen.

The total amount of land that is cultivated around the globe is: (MLN, GI, 2014)

(FBD. GI, 2017)
A) 09 percent (B) 10 percent (C) 11 percent (D) 12 percent

The following are examples of air pollution caused by anything that has the potential to be damaging to living organisms: (DGK. GI, 2014)
(A) Pollution of the Water (B) Pollution of the Soil (C) Pollution of the Air (D) Pollution of the Noise

The following are the causes of stone cancer: (LHR. GI, 2015)
A) Pollution of the soil B) Pollution of the water C) Pollution of the air D) Pollution of the stones

The internal stable state that homeostasis creates is also known as: (GRW. GII, 2015)
(A) Disorder (B) Disease
In perfect health
(D) Unusual Physical Condition

Multiple choice questions on man’s impact on the environment

in its most basic form. Ozone is: (SGD. GI, 2015) (GRW.2018)
(A) a greenish hue, (B) a reddish hue, (C) a yellowish hue, and (D) a blueish hue.

The following describe water that is found in the form of frozen ice caps: (BWP. GI, 2015)
(A) 01 percent (B) 02 percent (C) 03 percent (D) 04 percent

The name of the chemical that eradicates weed plants is: (DGK. GII, 2015)
(A) Pesticide (B) Insecticide (C) Fungicide (D) Herbicide

The following is a percentage breakdown of the land that is being farmed: (LHR. GII, 2017)
(A) 30 percent (B) 21 percent (C) 11 percent (D) 5 percent

The following is a list of the number of ozone molecules that may be destroyed by a single chlorine atom when it interacts with UV rays: (LHR. GII, MLN, 2018)
A One million (B) Two million and one (C) One billion (D) Two billion and one

The following apply to water that is found in the ice caps: (FSD. 2018)
(A) 1 percent (B 2 percent (C) 3 percent (D) 4 percent

Multiple choice questions on man’s impact on the environment.

Detailed Questions Taken From Unit 27’s Previous Exams:

Write a message about Fossil Fuels. (MLN. GI, 2016

(AJK. GI, 2016) Explain how air and water might be considered renewable resources.

What exactly are Non-Exhaustible Resources? Could you please explain any two of them? (GRW. GII, 2015) (MIN, G1, 2017

Provide an overview of the various energy sources. (SGD, GI, 2014) (SGD. GI, 2015)

Do some writing about the relationship between animals and fossil fuels. (LIR. GII, RWP. GI, LIIR. GI. 2014) (SGD. GI, LIR. GII, 2016) (MLN. 2018)

Draft a quick paragraph on the alteration of the natural environment. (DGK. GI, 2014)

Compose an essay in which you explain the concepts of resource degradation and exhaustion. (DGR. GII, RWP. GI & GII, 2017)

To fully understand the ozone layer and the process of ozone layer depletion, jot down some notes. (GRW, G1, 2014) (FBD, GI, 2015|LIIR. GI, 2016) (FBD. GI, 2017)

Explain the significance of the world’s woods. (MLN.GI, 2014) (RWP. GI, BWP. GI, 2016) (GRW. GII, LIIR. GII, 2017) (SWL 2018)

How are deforestation and reforestation different from one another? Please explain the significance of forests. (FBD. GI, 2014) (SWL. GI, SGD. GI, 2017)

What exactly does “global warming” mean? What part does the greenhouse effect play in the process of global warming?

Give an explanation of the process known as eutrophication. (LHR. GI, 2015) (Both BWP and AJK, 2018)

What do you know about the influence of greenhouse gases on the environment? (BWP. GI, 2014) (SGD. GI, MLN. GI, AJK, GI, DGK. GI & GII, 2015) (FBD. GI, 2016)

What is the difference between an insecticide and a pesticide when it comes to food? (GRW. GI, GRW. GI, 2015)

What exactly is this acid rain? Could you please explain how it affects the environment? (BWP. GI, 2015) (GRW. GI, 2016)

Describe the effects of acid rain and the greenhouse effect. (DGK. GI, 2014) (DGK. G1, 2017)

Describe the factors that lead to acid rain as well as its consequences. (SWL. GI, 2014)

Put together some notes on eutrophication or algal blooms. (MLN. GI, BWP, GI, 2017)

Define Pollution. Describe the effects of pollution on water. (AJK. GI, 2017)

Explain how wildlife may be considered renewable resources. (LHR. GII, 2018)

A remark on the greenhouse impact has to be written. (GRW. 2018)

Make a note of the deterioration and exhaustion of the available resources. (FBD. 2018)

Describe the impact of the greenhouse. The environmental damage caused by it and the effects it has had.

What exactly are non-renewable resources, and how can their two different categories be broken down further?

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