What could happen if people overfish in a lagoon or coastal area?
Fish populations would increase.
Other animals might lose a food source.
Fish populations might decrease.
The coral reef could suffer.
How do coral reefs, like those around Motunui, help their ecosystems?
They make sure sharks reach the coast line.
They provide food and shelter for marine life.
They keep water clean by filtering debris.
They protect shorelines from strong waves.
What is the primary source of energy for all ecosystems, including coral reefs and forests?
The coconut trees
The wind
The fish in the lagoon
The sun
Trees, like coconut trees on Motunui, are vital for both humans and animals in many ecosystems around the world.
True
False
Plants, animals, and people depend on each other in all ecosystems, just like Moana depends on her island and the sea.
False
True
What is an ecosystem?
A type of building
A group of people working together
A system of connected living and non-living things
A way of organizing animals
What roles do trees or palm trees play in ecosystems?
They produce oxygen.
They provide food and building materials.
They store carbon to help reduce climate change.
They are only there for humans to use their wood.
Pollution in one part of the ocean (like near Motunui) won’t affect other parts, such as coral reefs or lagoons.
False
True
Why is it important for humans to only take what they need from nature?
To reduce waste
To avoid running out of resources like food and water
They actually need to take more, because it might run out
To make sure ecosystems stay balanced
Ecosystems are balanced when every part plays an important role, from the smallest insects to the largest animals.
False
True
Why are lagoons, like the one near Moana’s village, and wetlands important to both people and nature?
They are a natural barrier between the land and ocean.
They provide food and shelter for many species.
They are dry, sandy locations.
They do not provide water for different plants and animals.
Why is biodiversity important to ecosystems like forests, oceans, or even cities?
It makes the area more attractive to tourists.
It speeds up the growth of trees.
It ensures all species can support each other.
It helps people grow more crops.