MAHA TET · Environmental Studies
Components of environment and their interdependence.
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Q1 · Air, Water, Earth and Sky · EASY
Air is essential for life on Earth. Which gas in air do humans and animals breathe in for respiration?
Q2 · Air, Water, Earth and Sky · MEDIUM
A farmer notices that his crops grow well after rainfall. Rain water seeps into the soil and is absorbed by plant roots. Which component of the environment is directly supplying water to the plants in this case?
Q3 · Air, Water, Earth and Sky · MEDIUM
A student observes that water in a bowl kept outside gradually disappears after a few days in summer. The water has changed into water vapour and mixed with air. This process is called:
Q4 · Air, Water, Earth and Sky · HARD
In a pond ecosystem, fish breathe oxygen dissolved in water, aquatic plants release oxygen during photosynthesis, and dead plants decay at the bottom releasing nutrients back into water. This example best demonstrates:
Q5 · Air, Water, Earth and Sky · HARD
Which of the following human activities contributes MOST significantly to the increase of carbon dioxide in the atmosphere?