Which of the following properties of soil has the greatest effect on plant and microorganism growth?a.soil textureb.soil colorc.soil reactiond.soil consistency
Water would be considered a(n) _______. a. potential renewable resource b. potential nonrenewable resource c. actual renewable resource d. actual nonrenewable resource Please select the best answer from the choices provided
Biological pest control involves _______. a. eliminating pests with pesticides b. using biological mechanisms to eliminate pests c. planting a new crop every year d. burning crops Please select the best answer from the choices provided
How do trees improve water quality?a.Tree roots anchor soil in place, preventing runoff.b.Water is filtered as it passes through the root systems of trees.c.An adult tree can store nearly 250 gallons of water.d.All of the above
Which of the following is least likely to have difficulties with economic access to potable water?a.Zimbabweb.Australiac.Indiad.None of the above
The La Brea Tar Pits are _______.a.a valuable source of petroleumb.filled with tar made from mammalsc.filled with asphaltd.a and b only
How do organic farming practices relate to soil health?a.Organic farmers rely on soil health for good crop production.b.Organic farmers rely on the interaction between soil microbes and organic matter.c.Organic farmers avoid the use of pesticides and chemicals.d.all of the above
Why might soils rich in organic matter not be fertile?a.Soil fertility comes from a balance of organic matter and other mineral nutrients.b.Large amounts of organic material make soil retain too little water.c.Soil fertility is a result of the inorganic minerals present.d.Soils rich in organic material are always highly fertile.
The use of buffer strips can help reduce human impacts on waterways.
Which layer of soil is least likely to be penetrated by plant roots?a.O (organic matter)b.A (topsoil)c.B (subsoil)d.C (parent rock)
How do trees interact with other organisms? a. They provide mammals with food. b. They receive shelter from insects. c. They obtain food from other plants. d. All of the above Please select the best answer from the choices provided
Soil composition is not subject to change.
The defining characteristic of potable water is that it _______.a.is used as tap waterb.can be used for washing and irrigationc.can be used and consumed without riskd.is delivered through pipes
Which of the following best explains why clear-cutting forests is more destructive than selectively cutting down trees in forests? a. Clear-cutting eliminates all trees leaving none behind to maintain soil fertility or house native animals. b. Clear-cutting places the land at greater risk for wildfires. c. Clear-cutting makes land more attractive for human development. d. Clear-cutting causes less soil erosion than selective cutting. Please select the best answer from the choices provided
Which of the following is not an effect of erosion on lakes?a.water leakageb.wearing away of sidesc.increased water levelsd.basin filling with sediment
Did you find these answers helpful?
What Are Natural Resources?