Nutrient Cycling

Nutrients

Chemical elements required for metabolism and growth.

True

True or False: Nutrients can be a limiting resource.

Mineral nutrients

What biological, chemical, and physical factors control the supply and availability of nutrients to.

Mechanical Weathering

The physical breakdown of rocks into progressively smaller particles without chemical change.

Chemical Weathering

The chemical breakdown soil minerals leading to the release of soluble forms of nutrients and other elements.

Soil

Mix of mineral particles; solid organic matter (detritus, primarily decomposing plant matter); water containing dissolved organic matter, minerals, and gases; and organisms.

Horizons

Layers of soil distinguished by their color, texture, and permeability.

Nitrogen

The atmosphere has 78% of _____________.

Oxygen

The atmosphere has 21% of ______________.

Atmospheric nutrients

Dust and aerosols (collection of suspended solid, liquid, and gaseous particles).

Atmospheric pollutants

Acid rain and ocean acidification is

True

True or False: Nitrogen Fixation is related to the nitrogen cycle.

False

True or False: Ammonia (NH3) is not in the nitrogen cycle.

Decomposition

The process by which detritivores break down detritus to obtain energy and nutrients, which releases nutrients as soluble organic and inorganic compounds that can be taken up by other organisms.

Eutrophication

Lakes accumulate sediments over time, becoming more shallow and productive.

True

True or False: Climate effects on nutrient availability.

True

True or False: Climate affects on nutrient availability needs to be in between.

Tundra

Which one would have the most rich soil?
Rainforest, Tundra, Utah.