MA

Mohit Aggarwal NadbaiwallaAIR 281· 2024

Question Q.14Discuss repercussions on marine ecosystem and economyGS3GS1

Discuss the repercussions on marine ecosystem and economy resulting from the combined effects of ocean acidification, ocean warming, and oxygen loss.

Open scan (p.31)

Introduction

Marine ecosystem involves marine biodiversity, marine climate and marine ecology. It is highly sensitive to external charges.

17 words

Main Body

Ocean acidification means lowering of the pH of ocean. Ecosystem due to dissolution of CO2. (from B) at lower end (ocean fertilization)

IMPACT(a) Stress on organisms coral bleaching, loss in kelp forest, sea grass,

(b) erosion of rocks may lead to release of dissolved carbon and methane hydrate into atmospheric.

(C) Worsen the food webreakdown web of marine ecology. e.g.: loss of appetite, offspring trauma

Ocean warming is the increase in average temperature of world oceans due to 'climate change' and greenhouse gas (GHG) effect from anyone at 2yC (IPCC 6th assessment)

IMPACT(1) Coral U bleached explosion of zooxanthale (Irrelastic)
2dislocation of global ocean 'conveyor belt' ⇒ altered ocean current, salinity balance
3Hydrequuality ⇒ more rainfalls, more violent cyclones (Amphan, oKhi)

Oxygen loss is the reduction in dissolved oxygen in the marine water body.

IMPACT(1) killing of marine animals (CHI backed)
2after biodiasity of deep oceans (reliant on oxygen) in not photosynthssis
3reduce the productivity of ocean

At scattertemperatrue is rising and true are mostly up, there is a gone threat to our very existence on earth. are: Pampi goal, SSC (IT) and other international conventions must be adhered to left gsmit.

202 words7 paragraphs

Diagram

Venn diagram showing intersection of Animals, Flora, and Fauna with labels for Cetalli, Pertory (A Bioti)

  • Good definition of marine ecosystem
  • Identifies key impacts on organisms
  • Mentions cascading effects on food web
  • Attempts to link chemical changes to biological impacts

Topper

Mohit Aggarwal Nadbaiwalla

AIR 2812024

Subject & Paper

GS3GS1

Topic

Environment and Ecology

Marine Ecosystems

Ocean Acidification, Ocean Warming, Oxygen Loss

Writing Stats

219

Total words

7

Paragraphs

Technical/scientific

Tone