SJI 5- SCIENCE ECOSYSTEM

What does an ecosystem consist of?

• Only biotic factors

• Only abiotic factors

• Both biotic and abiotic factors

• Neither biotic nor abiotic factors

Which of the following is a biotic factor in an ecosystem?

• Water

• Soil

• Animals

• Air

Which of the following is an abiotic factor in an ecosystem?

• Plants

• Animals

• Rainfall

• Fungi

What is the term for the interaction between organisms and the physical environment?

• Ecosystem

• Abiotic factor

• Biotic factor

• Habitat

Which of the following is a biotic component of an ecosystem?

• Temperature

• Air

• Plants

• Water

Which factor is considered abiotic in an ecosystem?

• Plants

• Fungi

• Water

• Animals

What are estuaries?

• Areas where two oceans meet

• Bodies of water where fresh river water mixes with salty ocean water

• Dry land areas between rivers and seas

• Underground lakes connected to the ocean

What kind of water is found in estuaries?

• Pure freshwater

• Pure saltwater

• Brackish water

• Rainwater

What affects the water level and salinity in estuaries?

• Winds

• Tides

• Erosion

• Volcanoes

What happens to estuaries during the rainy season?

• They become dry

• They are filled with salty ocean water

• Rivers flood estuaries with freshwater

• They remain unaffected