Exam 3

What is one of the primary ecological services provided by wetlands that contributes to natural disaster mitigation?

• Production of methane gas

• Storm surge and flood control

• Timber production

• Agricultural irrigation

Tags

NGSS.MS-LS2-5

How long does natural soil formation typically take?

• Several months

• A few years

• Hundreds of years

• Thousands of years

Why are wetland soils typically gray and color?

• Due to high salt content

• Due to mineral deposits

• Due to anaerobic conditions

• Due to high pH level levels

Which agricultural practice is most likely to contribute to wind erosion

• Crop rotation

• Contour farming

• Monoculture with bare soil between rows

• Terrace farming

Tags

NGSS.HS-LS2-7

What is a sustainable solution to prevent soil erosion on hill sides?

• Increasing irrigation

• Terracing

• Removing all vegetation

• Deep plowing

Tags

NGSS.MS-ETS1-4

NGSS.MS-LS2-5

Which soil conservation method involves planting different crops in successive seasons

• Monocropping

• Crop rotation

• Intensive tillage

• Continuous cultivation

How does deforestation contribute to soil degradation in tropical rainforest?

• Increases soil, nutrient content

• Reduces soil temperature

• Exposes soil to direct rainfall impact and erosion

• Improves soil structure

Tags

NGSS.MS-LS2-4

What characteristic is used to legally delineate and define wetlands?

• Water depth only

• Presence of hydrophytes and hydric soils

• Geographic location

• Annual rainfall

What is a characteristic of sustainable agricultural techniques

• Heavy pesticide use

• Single crop cultivation

• Maintained productivity without increased fertilizer needs

• Plowing in the direction of slopes

How are stream biota typically distributed in aquatic environments?

• Randomly throughout the water column

• Only in the surface waters

• Only in the benthic zone

• Both vertically and horizontally stratified

Tags

NGSS.MS-LS2-2