Ag Apps 5.03 ENR Basics

What is selection cutting?

• cuttings made in a stand of trees before harvest takes place

• harvesting in a forest of trees of different ages and mixed species

• harvesting where all the trees in a forest are to be cut at once

• removal of forest litter to prevent forest fires

The land class that allows the MOST intensive cultivation of field crops with the fewest limitations is:

• Class I

• Class III

• Class VI

• Class VIII

Ash is used in the construction of:

• baseball bats

• plywood

• veneer

• log homes

Which is a major tree of the Pacific Coast forest region of North America and one of the MOST commercially grown trees?

• white oak

• loblolly pine

• red maple

• douglas fir

Which is MOST true of the relationship of hunting to wildlife?

• increases the number of animals competing for the food supply

• removes some game that would otherwise be lost due to natural causes

• endangers some wildlife species

• takes the place of natural predators

What is the BEST description for 'no till' as a cropping technique?

• crops are planted in the residue of a previous crop without plowing

• geese are used as the major source of weed control

• plowing is done prior to planting

• used only when the farmer is not concerned with soil erosion

What type of stress can cause some animals to slow down or stop reproducing altogether as a result of malnutrition?

• hunting

• killing

• overpopulation

• overeating

What role does precipitation play in the water cycle?

• keeps moisture in a gaseous state

• controls rate of air movement in the soil

• releases moisture as rain or snow

• reduces size of soil particles

The LEAST expensive method of replacing trees harvested from the woodlot is:

• hand planting of seedlings

• natural seeding

• using airplanes to sow seeds

• hiring commercial reforestation companies

Spaces between soil particles that permit root penetration and store air, water, and nutrients are called:

• pores

• anions

• cations

• stoma