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