DBB2217 ENVIRONMENTAL SCIENCE

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Description

SESSION JULY-AUG 2026
PROGRAM BACHELOR OF BUSINESS ADMINISTRATION (BBA)
SEMESTER IV
COURSE CODE & NAME DBB2217 ENVIRONMENTAL SCIENCE
   
   

 

 

Assignment Set 1

 

  1. Discuss the various types of renewable energy sources. How can their use benefit the environment?

Ans 1.

An energy source which comes from natural sources that replenish themselves on human time scales. Alternative sources of energy include sunlight, wind, running water, organic matter, and heat from the earth. The uses and environmental aspects of each source are different.

Types of renewable energy

Electricity and heat created by the sun’s energy. Photovoltaics are panels that generate electric power from the sun and solar thermal systems use sunlight to make hot water or heat for other uses. Rooftop panels

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  1. Differentiate between in-situ and ex-situ conservation with suitable examples. How do these approaches complement each other in conserving biodiversity?

Ans 2.

In-situ Conservation

In-situ conservation is the conservation of species in their natural habitats, including the interactions and conditions that they depend on. National parks, wildlife sanctuaries, biosphere reserves and community managed habitats are important examples.

For example, the conservation of one-horned rhino in Kaziranga National Park also conserves its habitat—the grassland and wet land. Protecting a forest also protects pollinators, soil, food chains, and water control.

In this way it is possible to let

 

  1. Comment on following:
    (i) Global warming-causes and mechanism
    (ii)Acid rain-causes and effects on environment and human life

Ans 3.

(i) Global Warming Causes and Mechanism

Global Warming is the increase in the average surface temperature of the earth over a long period of time. The recent warming is primarily attributed to the rise in greenhouse gases due to human activities. These gases alter the balance between the energy received by the planet from the Sun and the energy emitted by the planet.

CO₂ is emitted from combustion of coal, oil, and natural gas. Deforestation will result in releases of stored carbon and lower the capacity for vegetation to take up carbon dioxide. Methane is emitted

Assignment Set 2

 

  1. Explain the different patterns of population growth with suitable examples. How does population growth affect environmental sustainability?

Ans 4.

Patterns of population growth

Population growth is an increase or decrease in the number of individuals over a period of time. Increase in population size is caused by births and immigration, and decrease in population size is caused by deaths and emigration. These processes are involved in the growth patterns, along with

 

  1. Explain disaster management, describing, types of disasters and four aspects of disaster management.

Ans 5.

Disaster management refers to the systematic approach to the understanding, mitigation of potential damage, readiness for disasters, response and assistance during the disaster, and recovery. It includes (voluntary organisations, health services, businesses, communities and government agencies). It is meant for the safeguard of life, livelihoods, property and environment.

A hazard is a disaster

 

  1. Describe the major environmental laws in India and explain their role in preventing environmental degradation and protecting natural resources.

Ans 6.

Pollution Control, Conservation of Ecosystems and Accountability of individuals/organisations for environmental damage. Legislation is in place for specific resources and risks and for coordinated protection. They are effective when they are implemented, monitored, and with public participation and access to remedies.

Pollution control laws

The Water (Prevention) and Control of Pollution Act, 1974 is to prevent and control water pollution and to maintain or