Q1
Which ecosystem is most affected by rising sea levels in Bangladesh?
π‘ Show Hint
π‘
Think about coastal areas and their significance.
A
Grasslands
B
Mangrove forests
C
Mountain ecosystems
D
Deserts
π Explanation: The mangrove ecosystem, particularly the Sundarbans, is most affected by rising sea levels, leading to habitat loss and increased salinity.
Q2
What is the primary cause of deforestation in Bangladesh?
π‘ Show Hint
π‘
Consider agricultural practices and urban expansion.
A
Urbanization
B
Agricultural expansion
C
Natural disasters
D
Mining activities
π Explanation: The primary cause of deforestation in Bangladesh is agricultural expansion, as forests are cleared to make room for farming and settlements.
Q3
What is a sustainable practice to mitigate soil erosion in Bangladesh?
π‘ Show Hint
π‘
Consider agricultural techniques.
A
Slash-and-burn agriculture
B
Terracing
C
Monoculture farming
D
Overgrazing
π Explanation: Terracing is a sustainable practice that helps to reduce soil erosion by creating flat areas on slopes, allowing for better water retention and crop cultivation.
Q4
Which gas is a major contributor to air pollution in Dhaka?
π‘ Show Hint
π‘
Consider the sources related to transportation.
A
Ozone
B
Carbon monoxide
C
Methane
D
Nitrogen dioxide
π Explanation: Carbon monoxide is a major contributor to air pollution in Dhaka, primarily from vehicular emissions and traffic congestion.
Q5
Which of the following is a key feature of the ecosystem services provided by mangroves in Bangladesh?
π‘ Show Hint
π‘
Think about environmental protection and community benefits.
A
Soil fertility
B
Coastal protection
C
Air purification
D
Thermal regulation
π Explanation: Mangroves provide critical ecosystem services, including coastal protection from storms and habitat for diverse marine life, making them vital for both the environment and local communities.
Q6
What is the term for the loss of biodiversity due to habitat destruction in Bangladesh?
π‘ Show Hint
π‘
Think about the impact on wildlife.
A
Habitat fragmentation
B
Overexploitation
C
Invasive species
D
Climate change
π Explanation: Habitat fragmentation refers to the loss of biodiversity due to habitat destruction, which is a significant concern for wildlife in Bangladesh.
Q7
Which of the following is a major consequence of climate change in Bangladesh?
π‘ Show Hint
π‘
Think about the geographical features of Bangladesh.
A
Increased rainfall
B
Higher temperatures
C
Increased flooding
D
Reduced biodiversity
π Explanation: One major consequence of climate change in Bangladesh is increased flooding, particularly in low-lying areas which are vulnerable to rising sea levels and extreme weather events.
Q8
What is the primary source of water pollution in the rivers of Bangladesh?
π‘ Show Hint
π‘
Consider both industrial and domestic waste.
A
Plastic waste
B
Agricultural runoff
C
Industrial effluents and sewage
D
Natural sedimentation
π Explanation: The primary source of water pollution in the rivers of Bangladesh is industrial effluents and untreated sewage, which contaminate the water bodies.