Swayam exam question papers ecosystem and natural resources 20 june 2026 shift 2nd

Question : Which ecosystem is the only one that does not thrive on solar energy?

Option 1: Marine organisms

Option 2: Phytoplanktons

Option 3: Deep-sea hydrothermal ecosystem

Option 4: Nitrogen-fixing bacteria

Question : The green plants in a terrestrial ecosystem capture about ______ per cent of the energy of sunlight that falls on their leaves and convert it into food energy.

Option 1: 20

Option 2: 10

Option 3: 1

Option 4: 5

Question : Statement 1: The conservation of biodiversity is essential for sustainable development as it provides various ecosystem services, including pollination, nutrient cycling, and climate regulation.

Statement 2: Biodiversity loss can disrupt ecosystem functioning, reduce ecosystem resilience, and have negative impacts on human well-being.

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 : The primary producer in an ecosystem are:

Option 1: Women

Option 2: Men

Option 3: Plants

Option 4: Bacteria