EcoSystem Quiz Questions: 3rd Grade Science! Trivia

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  • 1/18 Questions

    An ecosystem where the main plants are trees.

    • Lake
    • Beach
    • Forest
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About This Quiz


Are you familiar with the ecosystem? An ecological unit comprises all living and non-living things that include all plants, animals, and humans in the communities of life in a specific area. An ecosystem also includes items such as rocks, water, soil, and sand. The typical ecosystem is generally comprised of life. This awesome quiz about ecosystem will benefit you. Give it a shot.

Ecosystem Quiz Questions: 3rd Grade Science! Trivia - Quiz

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  • 2. 

    The water in the ocean is

    • Tropical

    • Salt Water

    • Rain Water

    Correct Answer
    A. Salt Water
    Explanation
    The water in the ocean is saltwater because it contains a high concentration of dissolved salts, such as sodium and chloride. This is due to the continuous process of water cycle, where rainwater flows into rivers and eventually reaches the ocean, carrying along minerals and salts from the land. Over time, these salts accumulate in the ocean, resulting in its characteristic saltiness. Additionally, the ocean is also influenced by underwater volcanic activity, which releases minerals and salts into the water.

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  • 3. 

    An ecosystem that is very dry is a

    • Coniferous

    • Desert

    • Environment

    Correct Answer
    A. Desert
    Explanation
    An ecosystem that is very dry is referred to as a desert. Deserts are characterized by extremely low levels of precipitation and limited availability of water. They typically have high temperatures and low humidity, resulting in arid conditions. These environments are often characterized by sparse vegetation and specialized species that are adapted to survive in such harsh conditions. Deserts can be found in various regions around the world, including the Sahara Desert in Africa, the Mojave Desert in North America, and the Arabian Desert in the Middle East.

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  • 4. 

    Populations that live in the same place make up a

    • Tropical Rain Forest

    • Community

    • Forest

    Correct Answer
    A. Community
    Explanation
    The correct answer is "Community." Populations that live in the same place refer to a group of organisms of the same species that coexist in a specific area or habitat. This term is commonly used in ecology to describe the interactions and relationships between different species within a particular ecosystem. In this context, the populations living in the same place form a community, where they interact with each other and with their environment.

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  • 5. 

    The interactions between the living and nonliving parts of the environment make up an

    • Ecosystem

    • Grassland

    • Coniferous Forest

    Correct Answer
    A. Ecosystem
    Explanation
    An ecosystem refers to the interactions and relationships between living organisms (plants, animals, and microorganisms) and their physical environment (air, water, soil, and sunlight). It encompasses the flow of energy, the cycling of nutrients, and the exchange of materials within a specific area. This includes both biotic (living) and abiotic (nonliving) components, such as plants, animals, climate, soil, and water. Therefore, the interactions between the living and nonliving parts of the environment collectively form an ecosystem.

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  • 6. 

    To a population of frogs living near a pond, the pond is its

    • Tropical Rain Forest

    • Habitat

    • Grassland

    Correct Answer
    A. Habitat
    Explanation
    The correct answer is "Habitat." Habitat refers to the natural environment or surroundings in which a particular species lives and thrives. In this case, the population of frogs lives near a pond, making the pond their habitat. The pond provides the necessary resources and conditions for the frogs to survive, such as water, food, shelter, and suitable breeding grounds.

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  • 7. 

    Rivers and most lakes are ____________ ecoystems.

    • Salt Water

    • Tropical

    • Fresh water

    Correct Answer
    A. Fresh water
    Explanation
    Rivers and most lakes are considered freshwater ecosystems because they contain water with low salt concentration. Freshwater ecosystems are characterized by the presence of plants and animals that have adapted to survive in these conditions. They play a crucial role in maintaining biodiversity and providing habitats for various species.

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  • 8. 

    An area where the main plants are trees is called an

    • Ecosystem

    • Forest

    • Fresh Water

    Correct Answer
    A. Forest
    Explanation
    A forest is an area where the main plants are trees. It is a complex ecosystem that supports a wide variety of flora and fauna. Forests play a crucial role in maintaining the Earth's biodiversity, regulating the climate, and providing numerous ecosystem services such as oxygen production, carbon sequestration, and water filtration. They also serve as habitats for countless species and provide resources for human use, such as timber and medicinal plants. Therefore, the correct answer is forest.

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  • 9. 

    The winters are cold in a _______________, and the trees have needle-shaped leaves.

    • Salt Water

    • Coniferous Forest

    • Tropical Rain

    Correct Answer
    A. Coniferous Forest
    Explanation
    Coniferous forests are known for their cold winters and the presence of trees with needle-shaped leaves. These trees, such as pine, spruce, and fir, have adapted to survive in harsh winter conditions by retaining their leaves, which reduce water loss and can withstand heavy snowfall. The cold climate of coniferous forests is due to their location in high latitudes or high altitudes, where temperatures are typically lower. Therefore, the given answer, Coniferous Forest, is correct.

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  • 10. 

    An _______________ is everything that surrounds a living thing.

    • Habitat

    • Community

    • Environment

    Correct Answer
    A. Environment
    Explanation
    The environment refers to everything that surrounds a living thing, including the physical surroundings, such as air, water, and land, as well as the other living organisms and their interactions. It encompasses the natural and human-made elements that influence and affect an organism's life and survival. The environment plays a crucial role in providing resources, habitats, and conditions necessary for the existence and well-being of all living things.

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  • 11. 

    Hot and wet, trees form three layers.

    • Tropical Rain

    • Salt Water

    • Grassland

    Correct Answer
    A. Tropical Rain
    Explanation
    The given correct answer is "Tropical Rain". This answer is appropriate because the statement mentions that the environment is "hot and wet" which is characteristic of tropical rainforests. Additionally, the statement mentions that trees form three layers, which is a common feature of tropical rainforests where the forest is divided into the emergent, canopy, and understory layers. Therefore, "Tropical Rain" is the most suitable answer based on the given information.

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  • 12. 

    Two types of forests that get a lot of rain are a ________ and a _______________.

    • Pine and tropical

    • Coastal and tropical

    • Woodlands and streams

    Correct Answer
    A. Coastal and tropical
    Explanation
    Coastal and tropical forests are two types of forests that receive a significant amount of rainfall. Coastal forests are located near coastal areas and are influenced by the moisture from the nearby ocean, resulting in high rainfall. Tropical forests, on the other hand, are found in regions near the equator where the climate is warm and humid, leading to abundant rainfall throughout the year. Both of these forest types thrive in wet conditions and support diverse ecosystems with a wide variety of plant and animal species.

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  • 13. 

    All the living things of the same kind that live in the same area at the same time make up a

    • Desert

    • Habitat

    • Population

    Correct Answer
    A. Population
    Explanation
    A population refers to all the living things of the same kind that exist in the same area at the same time. It includes individuals of the same species that interact with each other and potentially reproduce. The concept of a population is important in understanding the dynamics of a specific species within a given ecosystem or habitat. It helps in studying factors such as population size, density, distribution, and how it changes over time.

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  • 14. 

    Tress have flat leaves that drop off each fall.

    • Decidious

    • Coniferous

    • Tropical

    Correct Answer
    A. Decidious
    Explanation
    The correct answer is "deciduous." Deciduous trees are known for their flat leaves that drop off each fall. This characteristic distinguishes them from coniferous trees, which have needle-like leaves that remain on the tree year-round. Tropical trees, on the other hand, can have a variety of leaf shapes and may not necessarily shed their leaves in the same way as deciduous trees.

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  • 15. 

    Wet climate, thick trees, keep floor dark and cool.

    • Coastal

    • Lakeal

    • Riveral

    Correct Answer
    A. Coastal
    Explanation
    The given answer is "Coastal" because coastal regions often have a wet climate due to their proximity to large bodies of water, such as oceans or seas. These regions also tend to have thick trees and vegetation, which can help keep the forest floor dark and cool. Therefore, the combination of wet climate, thick trees, and a cool forest floor suggests a coastal environment.

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  • 16. 

    A __________ has warm summers and cool winters. The trees drop their leaves in the fall.

    • Deciduous forest

    • Grass Land

    • Coniferous forest

    Correct Answer
    A. Deciduous forest
    Explanation
    A deciduous forest is characterized by warm summers and cool winters, which is why it is the correct answer. In this type of forest, the trees shed their leaves in the fall, which is another distinguishing feature. This seasonal leaf drop is an adaptation to conserve water and energy during the cold winter months.

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  • 17. 

    Trees are evergreens, cold winters, cool summers.

    • Tropical

    • Habitat

    • Coniferous

    Correct Answer
    A. Coniferous
    Explanation
    Coniferous trees are a type of evergreen tree that can withstand cold winters and cool summers. They are adapted to thrive in habitats with these specific climate conditions. Therefore, coniferous is the correct answer as it aligns with the given statement about trees being evergreens and experiencing cold winters and cool summers.

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  • 18. 

    A __________ has hot summers and cold winters.

    • Forest

    • Grassland

    • Habitat

    Correct Answer
    A. Grassland
    Explanation
    Grassland is the correct answer because it is a type of ecosystem characterized by the presence of grasses and few or no trees. Grasslands typically experience hot summers and cold winters due to their location in temperate regions with distinct seasons. The lack of tree cover allows for more extreme temperature fluctuations, resulting in hot summers and cold winters. Forests, on the other hand, tend to have a more moderate climate due to the shade and moisture provided by trees. Habitat is a broad term that can encompass various types of ecosystems and does not necessarily imply a specific climate.

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  • Oct 21, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 18, 2010
    Quiz Created by
    Arwe00
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