1. The water cycle is driven by which of the following?
A. sun
B. gas
C. rocks
D. soil
2. When water evaporates from a puddle on the street, where does it go?
A. into a river
B. it sinks into the street
C. it rises into the atmosphere
D. it goes into outer space
3. _____ is an important element in every living thing.
A. Lithium
B. Boron
C. Gold
D. Carbon
4. Ecosystems can be changed by natural events or by human actions. Which is NOT a natural event?
A. a forest fire started by lightning
B. pollution from a factory entering a river
C. a beaver building a dam in a river
D. an earthquake
5. What is the name of the process during which an ecosystem becomes a new and different ecosystem?
A. species
B. succession
C. community
D. pioneer
6. Every Tasmanian wolf on Earth has died. This means that the Tasmanian wolf species is _____.
A. threatened
B. endangered
C. extinct
D. hibernating
7. In which ecosystem are animals mostly active at night? (1 point)
A. desert
B. tundra
C. grassland
D. taiga
8. A _____ is a biome with a lot of rain, fog, and a cool climate. (1 point)
A. tropical rain forest
B. temperate rain forest
C. taiga
D. tundra
9. Plants that can live in water-soaked soil are able to survive in the _____________ ecosystem.
A. standing-water
B. running-water
C. wetland
D. saltwater
10. Which organism lives in a saltwater ecosystem? (1 point)
A. snail
B. whale
C. crawfish
D. water lily
11. The shallowest part of the ocean ecosystem is called _____. (1 point)
A. the abyssal zone
B. the beach
C. the bathyal zone
D. the intertidal zone
12. The formation of a new community where another community already exists is known as
A. primary succession.
B. secondary succession.
C. pioneer community.
D. pioneer species.
13. Which biome has no trees and is frozen year round? (1 point)
A. tundra
B. taiga
C. desert
D. grassland
14. Most pond organisms live in shallow water because (1 point)
A. the water is warmer.
B. the water is cleaner.
C. there is more oxygen.
D. there is less shelter.
15. _____ is a mixture of dead organic material that can be used as fertilizer.
16. A(n) _____ is one of Earth’s major land ecosystems with its own characteristic
animals, plants, soil, and climate.
17. The boundary where fresh water feeds into salt water is called a(n) _____.
1. The water cycle is driven by A. sun.
2. When water evaporates from a puddle on the street, it goes to C. it rises into the atmosphere.
3. D. Carbon is an important element in every living thing.
4. B. Pollution from a factory entering a river is not a natural event.
5. B. Succession is the name of the process during which an ecosystem becomes a new and different ecosystem.
6. C. If every Tasmanian wolf on Earth has died, then the Tasmanian wolf species is extinct.
7. A. Desert ecosystem is where animals are mostly active at night.
8. B. Temperate rain forest is a biome with a lot of rain, fog, and a cool climate.
9. C. Plants that can live in water-soaked soil are able to survive in the wetland ecosystem.
10. D. Water lily lives in a saltwater ecosystem.
11. B. The beach is the shallowest part of the ocean ecosystem.
12. B. Secondary succession is the formation of a new community where another community already exists.
13. A. The tundra biome has no trees and is frozen year-round.
14. C. Most pond organisms live in shallow water because there is more oxygen.
15. Compost is a mixture of dead organic material that can be used as fertilizer.
16. Biome is one of Earth's major land ecosystems with its own characteristic animals, plants, soil, and climate.
17. Estuary is the boundary where fresh water feeds into salt water.
1. The water cycle is driven by the sun. To answer this question, you need to have a basic understanding of the water cycle. The water cycle is the continuous movement and transformation of water on, above, and below the Earth's surface. It involves processes such as evaporation, condensation, precipitation, and transpiration. The sun provides the energy that drives the water cycle by heating the Earth's surface and causing water to evaporate.
2. When water evaporates from a puddle on the street, it rises into the atmosphere. To answer this question, you need to understand the process of evaporation. Evaporation is the process by which liquid water changes into water vapor. When the sun heats the puddle on the street, the energy causes the water molecules to gain enough energy to break free from the liquid and enter the gaseous state, forming water vapor. This water vapor then rises into the atmosphere.
3. Carbon is an important element in every living thing. To answer this question, you need to understand the basic composition of living organisms. Living organisms are primarily made up of carbon-based compounds, such as carbohydrates, proteins, and lipids. Carbon is a fundamental building block of life and is essential for the structure and function of biological molecules.
4. Pollution from a factory entering a river is not a natural event. To answer this question, you need to differentiate between natural events and human actions. Natural events are events that occur in nature without human intervention, such as forest fires started by lightning, earthquakes, or beavers building dams in rivers. On the other hand, pollution from a factory entering a river is caused by human actions and is not a natural event.
5. Succession is the process during which an ecosystem becomes a new and different ecosystem. To answer this question, you need to understand the concept of ecological succession. Ecological succession is the process of change in the structure and composition of an ecosystem over time. It occurs in two main forms: primary succession, which begins in a previously barren area with no soil, and secondary succession, which occurs in an area that has been disturbed but still has soil intact. During succession, the community of organisms and environmental conditions gradually change, leading to the development of a new and different ecosystem.
6. Every Tasmanian wolf on Earth has died, which means the Tasmanian wolf species is extinct. To answer this question, you need to understand the concept of extinction. Extinction refers to the complete and permanent disappearance of a species from the Earth. If every individual of a species dies, there are no remaining members of that species, resulting in its extinction. In this case, since every Tasmanian wolf has died, it means that the Tasmanian wolf species is extinct.
7. In the desert ecosystem, animals are mostly active at night. To answer this question, you need to have a basic understanding of desert ecosystems. In desert ecosystems, the extreme temperatures and lack of water during the day make it difficult for animals to survive. Therefore, many desert animals have adapted to be more active during the cooler temperatures of the night. This allows them to conserve water and avoid the extreme heat of the daytime.
8. A temperate rainforest is a biome with a lot of rain, fog, and a cool climate. To answer this question, you need to have knowledge of different biomes and their characteristics. A temperate rainforest is a type of biome characterized by high levels of precipitation, cool temperatures, and abundant fog. It is typically found in regions with mild, wet climates, such as the Pacific Northwest of North America.