8.9

All of the following observations seem to indicate movement of the plates EXCEPT —

• rifting of the ocean floor

• convection currents in magma

• beginning of the ice age

• fossil evidence

Tags

NGSS.MS-ESS2-3

What type of boundary?

• Convergent

• Divergent

• Transform

Tags

NGSS.MS-ESS2-3

A student draws the diagram below in a notebook. What should the student label the curved arrows?

• Plates converging

• Plates diverging

• Mountain ridge

• Convection currents

Tags

NGSS.MS-ESS2-3

Which of the following are environmental problems often associated with sanitary landfills?

• Generating vast quantities of carbon dioxide gas

• Contamination of groundwater with landfill leachate

• Release of disease organisms

• Production of methane from anaerobic decomposition

Where would you expect to find the greatest concentration of leachate?

• at the bottom of the landfill

• at the top of the landfill

• throughout the landfill

• leachate is not created in a landfill

Which of the following are air pollutants released by incineration of waste, correctly paired with their environmental problem?

• Carbon dioxide - acid rain

• Nitrogen oxides - Smog & acid rain

• Sulfur dioxide - acid rain

• Dioxins - Carcinogen

Tags

NGSS.HS-ESS3-4

In this image, the function of D in the landfill is

• collect & remove leachate

• collect & remove methane gas

• compact MSW so that it takes up as little space as possible

• remove hazardous waste from MSW

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-3

What is the atomic number of oxygen?

• 6

• 7

• 8

• 9

Which of the following elements has an atomic mass of approximately 8.9?

• Beryllium

• Boron

• Carbon

• Fluorine

In the periodic table, which group contains elements with an atomic number of 8.9?

• Group 1

• Group 2

• Group 3

• None