#1
Which of the following is a renewable source of water?
Rainfall
ExplanationRainfall replenishes water sources through the water cycle.
#2
Which river is the longest in the world?
Nile
ExplanationThe Nile River holds the title of the world's longest river.
#3
What is the term for the underground layer of water-bearing permeable rock or unconsolidated materials from which groundwater can be extracted?
Aquifer
ExplanationAn aquifer is a vital underground water source for human use.
#4
What is the term for the process by which plants release water vapor into the atmosphere?
Transpiration
ExplanationTranspiration is the release of water vapor from plant leaves into the air.
#5
Which continent has the lowest average precipitation?
Antarctica
ExplanationAntarctica experiences minimal precipitation, making it the driest continent.
#6
What percentage of the Earth's water is freshwater?
10%
ExplanationFreshwater constitutes only about 10% of the Earth's total water.
#7
What is the main cause of water scarcity in many regions?
Inefficient water management
ExplanationPoor management practices exacerbate water scarcity issues.
#8
What is the term for the process by which water vapor turns into liquid water?
Condensation
ExplanationCondensation is the conversion of water vapor into liquid.
#9
Which country has the largest total renewable water resources?
Russia
ExplanationRussia boasts the highest renewable water resources globally.
#10
Which of the following is a major driver of water pollution in rivers and lakes?
Point source pollution
ExplanationPoint source pollution directly enters water bodies from identifiable sources.
#11
What is the term for the process of converting saltwater into freshwater for human use?
Desalination
ExplanationDesalination transforms seawater into potable freshwater.
#12
Which international organization works on water-related issues and sustainable water management?
United Nations Educational, Scientific and Cultural Organization (UNESCO)
ExplanationUNESCO addresses global water challenges and promotes sustainable practices.
#13
What is the concept of 'virtual water'?
Water used indirectly in the production of goods and services
ExplanationVirtual water accounts for the water embedded in products and services.
#14
What is the term for the gradual increase in the salinity of soil and water?
Salinization
ExplanationSalinization refers to the process of soil and water becoming more saline over time.
#15
Which UN Sustainable Development Goal focuses on water and sanitation?
Goal 6
ExplanationGoal 6 targets ensuring access to clean water and sanitation for all.
#16
Which river is associated with the Indus Valley Civilization?
Indus
ExplanationThe Indus River played a crucial role in the development of the ancient Indus Valley Civilization.
#17
What is the primary cause of water scarcity in arid and semi-arid regions?
Low annual precipitation
ExplanationLimited rainfall contributes to water scarcity in arid and semi-arid regions.