Cycles in Ecosystems

Identify the remaining processes and components of the carbon cycle. C

Combustion

A well is a structure created to obtain water from deep in the geosphere. From which stage of the water cycle does the well obtain water?

Groundwater

Match each process to the sphere it most directly involves. Atmosphere:

An increase in the level of CO2 aroundthe Earth leads to climate change.

Decomposers such as bacteria feed on dead plants and animals. In which cycle does this decomposition play a role in forming the fossil fuels that people use for energy?

Carbon cycle

Tasha went on a trekking expedition to a mountain range during her vacation. When she reached a particular elevation, it started raining heavily. Which sphere of Earth is most responsible for this sudden weather change?

Atmosphere / Troposphere

Identify the remaining processes and components of the carbon cycle. B

Atmospheric CO2

Although nitrogen is present in the air, it can't be consumed directly. It's converted into usable form by ___________.

Bacteria

Which living organism processes nitrogen in the atmosphere and makes it available to other living forms in a usable form?

Bacteria

What is a way that the geosphere is involved in the nitrogen cycle?

Bacteria that convert ammonia into nitrites and nitrates are found in the soil.

Identify the remaining processes and components of the carbon cycle. E

Fossil Fuels form

Match each process to the sphere it most directly involves. Biosphere:

Infection with a fungal diseasedecreases the size of a bat colony.

An increase in the concentration of greenhouse gases, like carbon dioxide, in the atmosphere can increase the temperature on Earth. How would such an increase in temperature most likely affect Earth's water cycle?

It would cause the melting of glaciers which would result in an increase in surface runoff.

How has the geosphere affected the evolution of life on Earth?

Some spiders that live in caves have lost functioning eyes, which are unnecessary in an environment without light.

Plants play a major role in the carbon cycle. Plants use carbon dioxide for _____.

Photosynthesis

Describe the purpose of Oxygen in the atmosphere:

Required for aerobic cellular respiration

Describe the purpose of Carbon Dioxide in the atmosphere:

Required for photosynthesis

Match each process to the sphere it most directly involves. Hydrosphere:

The depth of an ocean increasesas glaciers melt.

Match each process to the sphere it most directly involves.Geosphere:

The height of a mountain increases by0.4 centimeters each year.

What is a component of the biosphere?

bacteria

Match each step in the nitrogen cycle to its description. nitrification

bacteria convert ammoniato nitrites and nitrates

Match each step in the nitrogen cycle to its description. nitrogen fixation

bacteria convert atmosphericnitrogen to ammonia

Match each step in the nitrogen cycle to its description. Denitrification

bacteria convert nitratesinto nitrogen gas

Nitrogen is one of the important elements for life. Nitrogen is present in DNA and proteins. It's also a component of __________ in plants, a pigment that's critical for photosynthesis

chlorophyll

When plants die ______ break down their parts and release some carbon as carbon dioxide back into the atmosphere. The remaining carbon is buried in the soil.

decomposers

Match each event to the stage of the water cycle that it represents. A

drying of a wetmopped floor

What is one way that humans contribute to the water cycle?

evaporation of sweat from skin

Match each event to the stage of the water cycle that it represents. B

fog on the bathroom mirror after a hot shower

Identify the relative abundance Nitrogen in the atmosphere.

most abundant gasin the atmosphere

Identify the remaining processes and components of the carbon cycle. D

organisms release CO2

Match each step in the nitrogen cycle to its description. Assimilation

plants and animals take inand use nitrogen compounds

Match each event to the stage of the water cycle that it represents. C

rain droplets onthe window

Identify the relative abundance Oxygen in the atmosphere.

second mostabundant gas inthe atmosphere

What makes up the largest portion of the hydrosphere?

the oceans

Identify the relative abundance Carbon dioxide in the atmosphere.

trace gas