Certified Arborist Test Urban Forestry 2

Question 1

What is the primary benefit of urban trees in reducing the 'heat island effect'?

Accepted Answer

They provide shade and cool air through evapotranspiration

Answer

They produce oxygen

Answer

They block wind

Answer

They absorb noise

Question 2

What is the concept of 'right tree, right place' in urban forestry?

Accepted Answer

Selecting a tree species whose mature size, form, and requirements match the planting site conditions

Answer

Planting the most expensive tree available

Answer

Planting trees only in parks, not on streets

Answer

Choosing only native species for all locations

Question 3

What is 'canopy cover' and why is it an important urban forestry metric?

Accepted Answer

The percentage of land area covered by tree canopy when viewed from above

Answer

The number of trees per block

Answer

The height of the tallest tree in the city

Answer

The amount of leaf litter collected annually

Question 4

Why is species diversity important in urban tree planting programs?

Accepted Answer

Diversity protects against catastrophic losses from species-specific pests or diseases

Answer

Different species have different colors

Answer

It's required by federal law

Answer

Diverse plantings grow faster

Question 5

What role do urban trees play in stormwater management?

Accepted Answer

They intercept rainfall, promote infiltration, and reduce runoff volume and peak flow rates

Answer

They have no effect on stormwater

Answer

They increase flooding by directing water toward storm drains

Answer

They only help in rural watersheds

Question 6

What is a 'tree ordinance' in the context of urban forestry?

Accepted Answer

A local law governing the planting, maintenance, and removal of trees on public and sometimes private property

Answer

A court order to remove a specific tree

Answer

A federal regulation about national forests

Answer

An insurance policy for tree damage