Crops and Soil

not easily broken down in the environment

• desertification

• salinization

• persistent pesticide

• pheromone

a result of land degradation

• desertification

• salinization

• persistent pesticide

• pheromone

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

produced by an organism; influences another organism’s behavior

• desertification

• salinization

• persistent pesticide

• pheromone

can be caused by low rainfall or irrigation

• desertification

• salinization

• persistent pesticide

• pheromone

Soil layers, listed from the surface down, include

• topsoil, surface litter, bedrock, leaching zone, and subsoil.

• surface litter, subsoil, topsoil, bedrock, and leaching zone.

• surface litter, topsoil, leaching zone, subsoil, and bedrock.

• bedrock, topsoil, surface litter, subsoil, and leaching zone.

All of these are soil conservation methods except

• monocropping.   

• no-till farming.  

• contour plowing.

• building terraces

Tags

NGSS.MS-LS2-5

___________are not known to be major crop pests.

• Fungi

• Insects 

• Weeds

• Amphibians

Tools of biological pest control include

• pathogens. 

• plant defenses.

• chemicals from plants.

• All options

Genetic engineering of plants is a faster way of producing the same results as

• biological pest control.

• plant breeding.

• integrated pest management.

• soil conservation.

Integrated pest management can include chemical pest control, ___________and a mix of farming methods.

• sustainable agriculture

• aquaculture

• biological pest control

• All options

Tags

NGSS.MS-LS2-4