Environmental Science

The layer of leaves that blocks most of the sunlight from reaching the ground is

• the shrub level

• the canopy

• the understory

Though they cover only 6% of Earth's land, rain forests contain what percent of Earth's species?

• 30%

• 60%

• 90%

Which of the following statements is not true of coniferous forests?

• rainfall is scarce

• seasonal temperatures vary widely

• summers are generally short

Tags

NGSS.MS-ESS2-6

The long, thin wax coated needles of conifers help the trees

• deter predators

• catch sunlight

• conserve water and shed snow

Little sunlight reaches the floor of coniferous forests because

• trees grow in dense stands- close together

• the far north gets little sunlight

• the soil is poor

Tags

NGSS.MS-LS1-6

IN winter, the ground of coniferous forests is insulated by

• pine needles

• vegetation

• snow

Precipitation in deciduous forests is best described as

• rare

• occurring mainly in the spring

• occurs throughout the year

Tags

NGSS.MS-ESS2-6

Which of the following is not true of a deciduous tree in winter?

• its leaves shed the snow

• it stops doing photosynthesis

• it uses food stores in its trunk

Tags

NGSS.MS-LS1-6

The deciduous forest layer that gets the least sunlight is the

• understory

• canopy

• forest floor

Which abiotic factor causes organic matter to decay more rapidly in deciduous forests than in coniferous forest?

• colder and dryer winters

• warmer and wetter summers

• more topsoil