Forestry Unit 1

Confers with needles growing in clusters generally have how many needles per cluster?

• two to three

• three to five

• four to six

• five to nine

Which of the following is a conifer without needles?

• a fir

• a pine

• an oak

• a juniper

What is the best type of soil for growing plants?

• silt

• clay

• loam

• sandy

Where does humus come from?

• ashes from volcanoes

• decaying organic matter

• minerals below the top soil

• debris from the bottom of rivers

What are the layers of soil called?

• strata

• levels

• vectors

• horizons

What is the title of a person who studies soil?

• arborist

• pedologist

• horticulturalist

• paleontologist

What is the distinguishing characteristic of deciduous trees?

• They are tall.

• They have cones.

• Their leaves fall off.

• They have wide fan-shaped leaves.

How can an unlobed leaf BEST be described?

• It has no stem.

• It has jagged edges.

• It comes from a conifer.

• It has no indentations or subdivisions.

Where would you find the teeth on a leaf?

• on the margin

• on the outer bark

• at the base of the stem

• on the underside of the leaf

On a tree, what is the function of the vascular cambium?

• It absorbs oxygen.

• It creates new bark.

• It provides nutrients.

• It allows the tree to stand erect.