Biology Chapter 13 – Man and His Environment (Class 12) for FSC, Entry Tests & NTS Preparation
Chapter 13, Man and His Environment, is an important topic for Class 12 students preparing for FSC board exams, medical/engineering entry tests like MDCAT, NUMS, AKU, NUST, ECAT, UET, and NTS exams. This chapter explains the interactions between humans and the environment, focusing on the impact of human activities on ecosystems and the importance of environmental conservation. Understanding this topic is essential for studying ecology, sustainability, and responsible resource management.
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Water constitutes –% of body weight?
The actual or preserved remains of the organisms that lived in the ancient past are called:
UHS 2018
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Process that supplies food to living things through decaying and decomposition is called
In oceans of tropical regions
Study of human population and things that affect them is
Grassland of Argentina is:
NUMS 2015
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Man and His Environment
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Wild life refers to
Overgrazing results in:
NUMS 2019 Cancelled
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Geothermal energy is
Hydroelectricity is generated by using ______ of falling water.
Greenhouse gases are those that:
NUMS 2015
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The productivity of aquatic ecosystem is determined by:
NUMS 2016
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When resources gets scarce, the population growth?
PMC Practice 1
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Total area of the world under cultivation is
In air nitrogen is
An area previously supporting life is made barren, the subsequent recolonization is called ______.
UHS 2018
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The position of an organism in a food chain of an ecosystem called:
NUMS 2018
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Conversion of ammonium into nitrates is:
UHS 2018
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Man and His Environment
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Flow of energy in an ecosystem is:
NUMS 2014
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Study of environmental relations is called:
NUMS 2018
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Driving force for all the cycles in ecosystem is
The animals that feed on organic debris from decomposing plants and animals are called:
NUMS 2018
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Hot substance is escaped from inside the earth in the form of
Endangered species are
Which of the following statements is true about Savannah?
NTS 2015 DUHS and JSMU
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Which of the following describes an ecological niche?
NTS 2015 SMBBMC
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Balance in the nutrient cycle can be upset when
In a forest, there are a lot of plants; trees, shrubs, and herbs. What will the Palm trees face if they grow in the same forest?
NTS 2019
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Man and His Environment
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In nitrogen fixation, nitrogen is converted to:
NUMS 2019 Cancelled
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Man and His Environment
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Which of the following is not correct for food web?
NUMS 2019 Cancelled
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Man and His Environment
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Wind blows from area of
Which one is a non-renewable resource?
Tides are caused by
Which of the following trophic levels has the largest biomass in ecosystems?
NUMS 2018
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Man and His Environment
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In air % of oxygen and carbon dioxide is
Which statement is true?
Process ensuring the survival of species over long periods of time, even though individual members of the species die.
UHS 2018
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Key Concepts about Man and His Environment
The chapter explains how human activities, such as industrialization, urbanization, deforestation, and agriculture, affect natural ecosystems. It covers environmental issues including pollution (air, water, and soil), global warming, climate change, and loss of biodiversity. The chapter also highlights the importance of conservation strategies, sustainable development, and environmental protection laws. Each concept is described with examples, significance for ecosystem balance, and relevance to human well-being. These concepts are highly important for FSC board exams, medical/engineering entry tests like MDCAT, NUMS, AKU, NUST, ECAT, UET, and NTS.
Free Entry Test & NTS Preparation
Mastery of this chapter helps students understand environmental impacts, conservation methods, and the relationship between humans and ecosystems. PLS Academy provides practice questions, solved past papers, and chapter-wise MCQs to help students revise these topics effectively. Regular study of this chapter improves problem-solving skills, conceptual clarity, and exam performance, ensuring students are well-prepared for FSC board exams, competitive entry tests, and NTS exams.
JazakAllah.
