this add nutrients to the soil
What is Humus?
Plants and animals need this element to make proteins.
What is nitrogen?
This is a measure of how well the soil supports plant growth.
What is soil fertility?
True or False? Animals absorb nitrogen through eating plants.
What is true?
What is bedrock?
burning of fossil fuels release nitrous oxide into the air that can lead to increased levels of this
What is acid rain?
this is one soil conservation technique farmers use is planting different crops in a field each year
What is crop rotation
These organisms break down the remains of dead organisms and return carbon and nitrogen to the soil
What are decomposers?
True or False: Plants take in nitrogen compounds from the air to create sugars?
What is false?
These are all the processes that are involved in the water cycle.
What is condensation, evaporation, and precipitation, runoff, transpiration, respiration.
This is one of earth's most valuable natural resources, and is required for all things that live on land.
What is soil?
What is respiration?
This soil horizon consists of clay and other particles of rock, but little humus
What is Horizon B or Subsoil?
Plants get nitrogen this way.