APES 1.2-1.3 SG

What is the measure on the pH scale measuring?

Acidity

The largest area of old-growth forest in the United States is located in which state?

Alaska

Which region of the ocean is LEAST likely to contain photosynthetic organisms?

Aphotic zone, profundal zone, abyssal zone

Which zone is the one in which species are adapted to the lowest light and the highest pressure?

Benthic zone, abyssal zone

What world regions contain the greatest area of rain forest?

Brazil, Indonesia

Which biome is most likely to be characterized by dry scrub with frequent fires?

Chaparral, temperate grassland

Which biome contains plants that are adapted to prevent water loss due to the low average rainfall and high temperatures year-round?

Desert, savannah

What is decreased by the breakdown of organic waste?

Dissolved o2

What is the zone of a pond or lake in which rooted, emergent plants such as cattails and rushes are located?

Emergent zone, Aka littoral zone

What is a measure of the amount of Ca2+ and Mg2+?

Hardness

Where is the majority of fresh water found on Earth?

In glaciers

Traveling southward from the Arctic regions of Canada to the tropics of Panama, one passes through several biomes - tundra, coniferous forest, temperate deciduous forest, and tropical rain forest. This pattern of change in vegetationx is primarily the result of the great grasslands of the world follow what pattern?

In increase in mean annual temperature and mean annual precipitation

Which biome is best characterized as an area that forms the narrow band along the coast that experiences a range of environmental conditions (including daily changes in sunlight, temperature, and water) ?

Intertidal zone

The zone that has the greatest biodiversity is where?

Is the intertidal zone and is on the shore

What are a characteristic of tropical rain forest soils?

Low nutrient soil

The major biological source of dissolved oxygen in the ocean comes from what?

Photosynthesis via phytoplankton

What country has the largest area of boreal forests?

Russia

Which law requires minimum safety standards for community water supplies?

Safe drinking water act

The thick forest of this biome tends to be well adapted to short growing seasons. Which biome is it?

Taiga

Define turbidity.

The amount of suspended sediment

In Mediterranean climate regions like portions of California, a wetter-than-normal winter often leads to greater severity of fires the following summer. This seeming paradox occurs because increased rain leads to what?

The increase of vegetation that later dies and becomes dry firewood

Why is agricultural production on floodplains often relatively high?

The sediment is replenished due to the flooding that takes place

Which biome has the highest net primary productivity, in part because of consistently warm temperatures and abundant sunlight?

Tropical forest

Which biome is characterized by the highest diversity of tree species?

Tropical rainforest

Which biome has an underlying subsoil that is permafrost, which prevents both water draining through and deep rooted plants from growing? Additionally, there is very little precipitation per year.

Tundra

What country has the largest area of temperate deciduous forest?

US

Which biome is characterized by long dry seasons and is dominated by grasses, shrubs, and grazing animals?

savannah

Why are phytoplankton most abundant in the upper few hundred feet of most bodies of water?

there is sun