Apes

The most commonly used approach to solar energy collection is ________, in which buildings are designed and building materials chosen to maximize their direct absorption of sunlight in winter, even as they keep the interior cool in the heat of summer.

• Active

• Passive

Tags

NGSS.MS-PS3-3

According to the second law of thermodynamics, whenever one form of energy is transformed into another,

• all of the energy is put to work

• all of the energy is converted into a less usable form, like heat

• some of the energy is converted to a less usable form, like heat

• 50% of the energy is put to work, the rest is lost as heat

Tags

NGSS.MS-PS3-5

Which of the following is a disadvantage of solar energy?

• It can only be used effectively in certain regions and certain times of day

• It produces greenhouse gases during use

• It is a nonrenewable energy source

• It is inexpensive compared to other sources

Which is the correct order of soil horizons starting at the surface?

• A, B, E,C, O

• O, A, B, C, E

• O, E, A, B, C

• O, A, E, B, C

The two main agents of erosion are...

• wind and flowing water

• gravity and frost wedging

• oxygen and water

• carbon dioxiede and wind

Soil sample that is 60% clay, 30% silt, and 10% sand has which texture? 

• clay

• clay loam

• sandy loam

• silt 

A mixture of soil, loam, and detritus; the topsoil

• A horizon

• B horizon

• E horizon

• O horizon

Which soil component has the least capacity for holding water?

• silt

• clay

• sand

• humus

The layer(s) of soil in which most of the humus and soil organisms are contained:

• 1 only

• 2 only

• 1 and 2 only

• 2 and 3 only

• 1, 2, and 3

Tags

NGSS.MS-LS2-3

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand

• silt

• clay

• humus

Tags

NGSS.MS-LS2-3