MEVE 019 Solved Assignment 2021-22

MEVE 019 Solved Assignment 2021-22: MEVE 019 Assignment 2021-22 All IGNOU Assignment available at our website. IGNOU University always being in picture due to its IGNOU Assignment Date Extended. In this post Student will Get MEVE 019 Solved Assignment 2021-22.

Course Code : MEVE 019

Course Title : ENVIRONMENTAL ISSUES

Assignment Code : MEVE 019/TMA-01/2021-2022

Coverage : All Blocks

Note: This assignment is based on the entire course. Answer any five questions. MEVE 019 Solved Assignment 2021-22 All question carries equal marks. The marks for each question are indicated against it within brackets on the right-hand side. Please write all answers in your own words.

1. Discuss the drivers of biodiversity loss. (20 marks)

Biodiversity loss includes the extinction of species worldwide, as well as the local reduction or loss of species in a certain habitat, resulting in a loss of biological diversity. The latter phenomenon can be temporary or permanent, depending on whether the environmental degradation that leads to the loss is reversible through ecological restoration/ecological resilience or effectively permanent (e.g. through land loss). The current global extinction (frequently called the sixth mass extinction or Anthropocene extinction), has resulted in a biodiversity crisis being driven by human activities which push beyond the planetary boundaries and so far has proven irreversible. Even though permanent global species loss is a more dramatic and tragic phenomenon than regional changes in species composition, even minor changes from a healthy stable state can have dramatic influence on the food web and the food chain insofar as reductions in only one species can adversely affect the entire chain (coextinction), leading to an overall reduction in biodiversity, possible alternative stable states of an ecosystem notwithstanding.

Ecological effects of biodiversity are usually counteracted by its loss. Reduced biodiversity in particular leads to reduced ecosystem services and eventually poses an immediate danger for food security, but also can have more lasting public health consequences for humans.[3] International environmental organizations have been campaigning to prevent biodiversity loss for decades, public health officials have integrated it into the One Health approach to public health practice, and increasingly preservation of biodiversity is part of international policy. For example, the UN Convention on Biological Diversity is focused on preventing biodiversity loss and proactive conservation of wild areas. The international commitment and goals for this work is currently embodied by Sustainable Development Goal 15 "Life on Land" and Sustainable Development Goal 14 "Life Below Water". However, the United Nations Environment Programme report on "Making Peace with Nature" released in 2020 found that most of these efforts had failed to meet their international goals.

BIODIVERSITY LOSS IS CAUSED BY HABITAT LOSS.

Habitat loss is the thinning, fragmenting, or outright destruction of an ecosystem’s plant, soil, hydrologic, and nutrient resources. 

BIODIVERSITY LOSS IS CAUSED BY INVASIVE SPECIES.

An invasive species is any non-native species that significantly modifies or disrupts the ecosystems it colonizes. Invasive species can disrupt ecosystems because they are better competitors than native species; they may consume food resources more rapidly or more efficiently or take over habitats faster than native species can adapt to the new changes. Some invasive species prey on native species, and if the native species have no natural defenses against the invaders, they may be eliminated rapidly.  

BIODIVERSITY LOSS IS CAUSED BY OVEREXPLOITATION.

Overexploitation (overhunting and overfishing) is the process of harvesting too many aquatic or terrestrial animals, which depletes the stocks of some species while driving others to extinction.

BIODIVERSITY LOSS IS CAUSED BY POLLUTION.

Pollution is the addition of unneeded or harmful nutrients or substances to an ecosystem. In a polluted area the quality of food, water, or other habitat resources declines, sometimes to the point where some species must move away or perish if the pressure is too great. For example, a 2014 study that followed the 2010 Deepwater Horizon oil spill in the Gulf of Mexico projected that perhaps 12 percent of the brown pelicans and more than 30 percent of the laughing gulls in the area hit by the spill had been wiped out. According to another 2014 study, up to 800,000 birds were thought to have died. Consequently, with such deep population losses, one could understand how genetic diversity of a species in an area could be lost. As casualties mount in the aftermath of a large single pollution event or over the combined pressure of several pollution events in an area, whole species may be lost.

2. Discuss the natural causes of climate change. (20 marks)

3. Explain the causes of biomass burning in India. (20 marks)

4. Explain the causes and management of arsenic pollution in India. (20 marks)

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5. Explain the causes and management of eutrophication. (20 marks)

6. Write short notes on the following: (20 marks)

a) Biomagnification

b) Soil pollution

7. Explain the causes of marine pollution. (20 marks)

8. Write short notes on the following: (20 marks)

a) Sustainable Development

b) SDG-13: Climate Action

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MEVE 019 IGNOU STUDY MATERIAL

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IGNOU MSCENV Solved Assignment

IGNOU MSCENV Solved Assignment: MEVE 019 Solved Assignment 2021-22: Those students who had successfully submitted their Assignments to their allocated study centres can now check their Assignment Status. Alongside assignment status, they will also checkout their assignment marks & result. IGNOU MSCENV Solved Assignment 2021-22: All this is often available in a web mode. After submitting the assignment, you'll check you IGNOU Assignment Status only after 3-4 weeks. it'd take 40 days to declare.

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IGNOU Master of Science Environmental Science (MSCENV) Solved Assignment The answer, of course, is to seek professional assistance. Candidates wishing to improve their grade point totals should always consider submitting a high-quality assignment as part of their preparation. Assignments are very important in increasing the grade points of your final grade; in fact, 30 percent of your final grade is determined by the assignment itself. As a result, if you follow the instructions carefully, getting high grades on your assignments is a simple job.

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