Human Influences on Ecosystems(Senior Class Biology Study by Topics) : Gate Academy

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Which of the following are non-biodegradable materials?

I: Wood
II: Plastics
III:Styrofoam box
IV: Prawn shell

II, III, and IV only

II and III only

I, II, III, and IV

I and II only

The use of plastic materials adds to the pollution of the environment. Which of the following statements explain it?

I: They take a very long time to decompose.
II: They are produced from natural resources.
III: They are waterproof.
IV: They produce harmful gases when burnt.

II and III

I and IV

I and III

III and IV

Tectonic plates may move because of convection currents that occur in the mantle. What is convection?

The transfer of energy through materials in direct contact.

The transfer of energy as earthquake waves.

The transfer of energy due to the movement of matter.

The process that breaks down rocks.

Which of the following would be considered a natural resource?

Steel

Plastic

Concrete

Rock

Adaptation is one of the parts of natural selection. What is an adaptation?

A process by which individuals that are better adapted are more likely to camoflage themselves to their environment

A group of organisms that can mate to produce fertile offspring

A process by which inherited traits in a population change over generations

An inherited trait that improves chances of survival and reproduction for a group of individuals in a population

A fungus is an example of:

An omnivore

An herbivore

A saprophyte

An autotroph

Many years ago, a volcanic eruption killed many plants and animals on an island. Today the island looks much as it did before the eruption. Which statement is the best possibly explanation for this?

Destroyed ecosystems always return to their original state

Geographic barriers prevent the migration of animals to island habitats

Destroyed environments can recover as a result of the process of ecological succession

Altered ecosystems regain stability through the evolution of new plant species

Eutrophication refers to a process of change that takes place in a body of water. Which of the following causes eutrophication?

Additional Nutrients

Thermal Pollution

CFCs

Acid rain

What are the three types of symbiotic relationships between organisms?

All of the above is true

Mutualism, commensalism, parasitism

Symbiosis, commercialism, paralysis

Mutualism, competition, predation

10.

Which rocks can be changed into sediments by weathering and erosion?

All of these

Sedimentary

Metamorphic

Igneous

11.

Everyone uses natural resources. How do natural resources benefit humans?

Natural resources are in unlimited supply.

Natural resources are low cost.

Natural resources improve lives.

Natural resources are readily available.

12.

Which of the following is an example of an ecosystem?

Air, water, grass, badgers

Hawks, mouse, badgers, and eagles

Air, water, sunlight, and soil

Grass, trees, bushes, and flowers

13.

Insecticides and weedkillers will cause no harm to marine life.

true

false

14.

Kelly disposed off some clear liquid chemicals into a lake. Which of the following would be observed in the pond community?

I: A smell could be detected from the lake.
II: The water in the lake was stagnant.
III: Dead fishes can be seen floating on the surface of the lake.
IV: Leaves of plants growing by the lake turned brown.

I, II, and III only

I and II only

I, II, and IV only

I, III, and IV only

15.

What are the three factors a niche includes?

Food, Nonliving conditions, behavior

Habitat, ecology, food

Food, competition, energy pyramid

Habitat, food chain, oxygen cycle

16.

Which is an abiotic factor that would affect the ability of a species of tree to survive in a particular habitat?

Availability of minerals in the soil

Type and number of tree parasites

Type and number of herbivores present

Climax vegetation of the area

17.

Millions of automobiles are on roads around the world every day. The image below shows one effect of car travel.

The rear of a car, with smoke coming out of its exhaust pipe.

What does the image best illustrate?

Air pollution

Global warming

Urbanization

Acid precipitation

18.

Water pollution can affect the ability of organisms to survive. Which of these statements is true regarding the chemical pollution of water?

Chemical pollution is not regulated

Chemical pollutants can come from both point-sources and nonpoint-sources.

Chemical pollutants are harmful only if present in very high concentrations.

Only a few chemicals dissolve in water.

19.

Scientists think the continents once formed a large, single landmass that broke apart, and the continents slowly drifted to their present locations. What is the name given to this theory?

Continental Movement

Continental Rise

Continental Drift

Continental Shelf

20.

A large area of forest was destroyed by fire. Which of the following will happen?

More plants will be grown.

Wildlife will be endangered

Less soil will be eroded.

The land will have more fresh air.

21.

The removal of nearly all the predators from an ecosystem would most likely result in

An increase in the number of carnivore species

A decrease in new predators migrating into the ecosystem

An increase in the number of herbivores

A decrease in the size of decomposers

22.

Earth's surface is mostly water. However, only a small amount of water on Earth is clean freshwater. Why is it important to maintain water quality?

To keep the polar ice caps from melting

To keep water from evaporating

To keep the ocean levels from lowering

To keep water from becoming a nonrenewable resource

23.

Which human activity will most likely have a negative impact on global stability?

Decreasing water pollution levels

Increasing recycling programs

Decreasing habitat destruction

Increasing world population growth

24.

Which of these food chains is in the correct order?

Snake, frog, caterpillar, water lily

Caterpillar, water lily, frog, snake

Water lily, frog, caterpillar, snake

Water lily, caterpillar, frog, snake

25.

Untreated sewage promotes the growth of algae and encourage the growth of marine plants.

False

True

1 out of 25

Time is Up!

Time's up

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Human Influences on Ecosystems(Senior Class Biology Study by Topics)

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