Which combination of molecules accounts for 99% of the gases in the atmosphere?

• argon and water vapor

• oxygen and carbon dioxide

• nitrogen and sulfur

• nitrogen and oxygen

The atmosphere is necessary for life on earth. Which of the following is NOT one of the life-supporting functions of the atmosphere?

• Stores aerosol pollutants in the troposphere.

• Contains gases necessary for cellular respiration.

• Protects living organisms from harmful solar radiation.

• Plays an important part in the water cycle and many nutrient cycles

Tags

NGSS.MS-LS2-3

Heated gases:

• expand and rise

• condense and fall

• expand and fall

• condense and rise

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4

The fact that many pesticides are synthetic compounds contributes to _________.

• pesticide persistence

• annihilation of natural predators

• pesticide drift

• genetic resistance

Tags

NGSS.MS-LS4-4

As people become more affluent they tend to consume more: 

• staple grains.

• meat, eggs, and milk

• wheat and rice

• legumes

Tags

NGSS.MS-ESS3-4

A farmer planting soybeans in a field one year, then corn the next year is practicing

• Crop rotation

• Strip farming

• Multiple harvesting

• Crop circulation

Tags

NGSS.MS-LS2-5

 Growing large fields of a single crop is known as:

• Intercropping

• industrialized farming

• subsistence agriculture

• monoculture

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

One difference between climate and weather is:

• Weather is a short-term measurement (days, weeks, years) and climate is a long-term measurement (usually over thirty years).

• Weather includes many measurements such as wind speed, temperature, air pressure, precipitation, and humidity and climate only involves temperature and precipitation.

• Weather is an observation science while climate is a more precise science that is instrument-driven.

• Weather occurs in the Northern Hemisphere and climate occurs in the Southern Hemisphere.

Agricultural lands in semiarid regions are lost each year due to a phenomenon called:

• desalinization

• eutrophication

• desertification

• annihilation

Tags

NGSS.MS-ESS3-4

Photochemical smog is created in the presence of sunlight and

• SO₂ and NOx

• CO and NOx

• VOCs and SO₂

• VOCs and NOx