1.
Which organisms are primarily responsible for nitrogen fixation in the soil?
2.
Which international agreement aims to protect endangered species from extinction?
3.
Which traditional method is used to conserve water in arid regions?
4.
Which of the following is a benefit of using biomass energy?
5.
Which practice involves leaving the previous year's crop residue on fields to prevent soil erosion?
6.
Which of the following is a common indoor air pollutant?
7.
Which fossil fuel is the most abundant on Earth?
8.
Which of the following is a challenge associated with solar energy?
9.
Which sector is the largest source of methane emissions?
10.
Which process involves removing salt from seawater to make it potable?
11.
Which human activity has the greatest impact on the carbon cycle?
12.
Which gas is not considered a major greenhouse gas?
13.
Which of the following is formed from the remains of ancient plants?
14.
Which practice involves planting different crops in alternating strips to prevent soil erosion?
15.
Which type of erosion is caused by the wind?
16.
Which renewable energy source is derived from the heat within the Earth?
17.
Which practice can help red, ce water usage in households?
18.
Which greenhouse gas is released during the decomposition of organic waste in landfills?
19.
Which soil component is crucial for retaining moisture and nutrients?
20.
Which gas is a major contributor to the formation of smog in urban areas?
21.
Which air pollutant is most associated with respiratory problems in humans? Particulate matter (PM)
22.
What is the primary cause of thermal pollution in water bodies?
23.
Which of the following is a secondary air pollutant?
24.
What is the effect of heavy metal contamination in water bodies?
25.
Which process in the water cycle returns water from the atmosphere to the Earth's surface?
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