UNIT TEST

• Destruction of million-year-old ecosystem – Depredation refers to severe destruction, which can lead to ecosystem loss.
• Excessive amount of waste unloaded in landfills – Waste disposal catastrophes occur when landfills overflow and cause environmental damage.
• • Increased birth rates – Overpopulation is linked to higher birth rates, leading to resource depletion.
• Loss of biodiversity – The extinction of species contributes to biodiversity loss.
• Deforestation – Massive deforestation results in habitat destruction and reduced tree cover.
• Fossil fuel combustion; massive rotting of vegetables filling up garbage dumps – Acid rain is caused by emissions from fossil fuel combustion.
• Dumping of urban waste; defiling of sea and rivers by oil spills – Water pollution occurs due to waste dumping and oil spills.
• CFCs in the atmosphere – Ozone layer depletion is caused by chlorofluorocarbons (CFCs).
• Industrial and community waste residues seeping into underground water tables, rivers, and seas – Oxygen reduction in the atmosphere can be linked to industrial pollution.
• Genetic modification in food production – Radical food system alteration includes genetic modification.
• The global food security situation and outlook remains delicately balanced amid surplus food production and the prevalence of hunger.
• Food production outpaced population growth over the past 50 years due to expansion in crop area and irrigation.
• Climate change poses complex challenges in terms of increased variability and risk for food producers and the energy and water sectors.
• There is a need to look beyond agriculture and invest in affordable and suitable food distribution systems if the problem of food insecurity is to be addressed sustainably.
• Proactive interventions and policies for tackling food security include issues such as agriculture for development, ecosystem services from agriculture, and climate adaptation strategies.
• Demand for food will be 60% greater than it is today, and the challenge of food security requires the world to feed 9 billion people by 2050.
• Global food security means delivering nutritious and sufficient food to the entire world population.
• he security of food also means the interconnected challenges of society, such as population growth, climate change, water scarcity, and agriculture.
• The closest aspect of human life associated with food security is health and nutrition.
• A major environmental problem is the loss of biodiversity, particularly through deforestation.
• Decline in water supply is caused by degradation of soil or desertification.
• Virtual water consumption is the use of water to produce consumer products.
• One of the models and agendas being pushed by different organizations to address global food security is through sustainable agriculture.
• The destruction of the water ecosystem may lead to the creation of climate refugees, people forced to migrate due to lack of access to water or flooding.
• Instead of dealing with the causes of global warming, there is some interest in “technological fixes” such as geoengineering.