Question : Acid rain is primarily caused by emissions of:
Option 1: Sulfur dioxide and nitrogen oxides
Option 2: Carbon dioxide and ozone
Option 3: Methane and CFCs
Option 4: Lead and mercury
Correct Answer: Sulfur dioxide and nitrogen oxides
Solution : The correct answer is (A) Sulfur dioxide and nitrogen oxides
When fossil fuels are burned, such as in power plants and vehicles, they release sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere. These gases undergo chemical reactions in the atmosphere and combine with water, oxygen, and other substances to form sulfuric acid and nitric acid. These acids then fall back to Earth as acid rain. Carbon dioxide (CO2) and ozone (O3) emissions (option B) are associated with other environmental issues, such as climate change and air pollution, but they are not the primary contributors to acid rain.
Methane (CH4) and chlorofluorocarbons (CFCs) (option C) are greenhouse gases that contribute to global warming but are not directly responsible for acid rain formation.
Lead (Pb)and mercury (Hg) emissions (option D) are associated with air pollution but are not the primary pollutants that cause acid rain.
Question : Deforestation contributes to climate change mainly because it:
Option 1: Releases carbon dioxide into the atmosphere
Option 2: Increases methane emissions
Option 3: Reduces albedo effect
Option 4: Leads to soil erosion
Question : Statement 1: Global warming is primarily caused by an increase in greenhouse gas emissions, such as carbon dioxide and methane.
Statement 2: These gases trap heat in the Earth's atmosphere, leading to a rise in average global temperatures.
Option 1: Both statement 1 and statement 2 are true, and statement 2 is the correct explanation of statement 1 .
Option 2: Both statement 1 and statement 2 are true, but statement 2 is not the correct explanation of statement 1 .
Option 3: Statement 1 is true, but statement 2 is false.
Option 4: Statement 1 is false, but statement 2 is true.
Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Global warming is one of the biggest environmental (1)_________ facing the world today. The primary cause of global warming is the (2)_________ of greenhouse gases such as carbon dioxide and methane into the atmosphere. These gases trap heat from the sun, causing the Earth's temperature to rise. The (3)__________. effects of global warming are widespread and include more frequent and severe weather events, rising sea levels and the loss of biodiversity. Many governments and organisations have implemented (4)__________ to reduce greenhouse gas emissions. However, individuals can also play a role in (5)__________ global warming by making small changes to their daily habits, such as reducing their energy consumption and driving less.
Select the most appropriate option to fill in the blank no. 4.
Option 1: sanctions
Option 2: subsidies
Option 3: restrictions
Option 4: policies
Global warming is one of the biggest environmental (1)__________ facing the world today. The primary cause of global warming is the (2)__________ of greenhouse gases such as carbon dioxide and methane into the atmosphere. These gases trap heat from the sun, causing the Earth's temperature to rise. The (3)__________ effects of global warming are widespread and include more frequent and severe weather events, rising sea levels and the loss of biodiversity. Many governments and organisations have implemented (4)__________ to reduce greenhouse gas emissions. However, individuals can also play a role in (5)___________ global warming by making small changes to their daily habits, such as reducing their energy consumption and driving less.
Select the most appropriate option to fill in the blank no. 3.
Option 1: negative
Option 2: positive
Option 3: neutral
Option 4: negligible
Global warming is one of the biggest environmental (1)__________ facing the world today. The primary cause of global warming is the (2)__________ of greenhouse gases such as carbon dioxide and methane into the atmosphere. These gases trap heat from the sun, causing the Earth's temperature to rise. The (3)___________ effects of global warming are widespread and include more frequent and severe weather events, rising sea levels and the loss of biodiversity. Many governments and organisations have implemented (4)__________ to reduce greenhouse gas emissions. However, individuals can also play a role in (5)__________ global warming by making small changes to their daily habits, such as reducing their energy consumption and driving less.
Select the most appropriate option to fill in the blank no 1.
Option 1: consequences
Option 2: opportunities
Option 3: benefits
Option 4: challenges
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