Apes

Ecological efficiency from one trophic level to the next is generally:

• 1%

• 10%

• 75%

• 90%

Tags

NGSS.MS-LS2-3

One characteristic feature of the tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a permanently frozen subsoil. This characteristic is known as

• Hoarfrost

• Glaciation

• Permafrost

• Crystallization

Which biome covers most of the land mass near Earth's equator?

• Desert

• Grassland

• Tropical rainforest

• Temperate forest

__________ primary productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).

• Gross

• Total

• Net

• Secondary

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The total quantity of all living matter in an area is called:

• Troposphere

• Net Primary Productivity

• Biomass

• Ecosystem

Which is NOT an example of biomass?

• wood

• crop leftovers (the part of the plant that isn't consumed)

• manure and/or trash

• petroleum

Which type of fuel produces the most sulfur?

• wind

• coal

• biomass

• nuclear fission

How does biomass reduce our carbon footprint by producing less CO2 than fossil fuels?

• Plants absorb the same amount of CO2 that is released when it is burned.

• Plants remove CO2 from the atmosphere and put it permanently into the ground.

• Biomass filters CO2 to make it more environmentally stable.

• Biomass doesn't release any CO2 when burned.

Tags

NGSS.HS-LS2-5

Which of the following energy sources has the lowest negative environmental impacts?

• Biomass

• Nuclear

• Natural Gas

• Solar

Tags

NGSS.MS-ESS3-4

The poster shown below advertises tours of a power plant.
This power plant produces electricity most likely by using-

• fossil fuels

• biofuels

• solar energy

• geothermal energy