What happened to your map?

Sometimes it is useful to make a layer transparent so that the basemap (in this case the imagery) can be seen below the layer. Click on the ellipses below the USA Earthquake Risk layer name and select “Transparency.” Set transparency to 50%.


I can now see the layer below the earthquake risk layer.

Environmental & Atmospheric Sciences

You might also like to view...

Transfer of carbon among organisms depends primarily on

a. fuel combustion and decomposition b. photosynthesis and cellular respiration c. soil bacteria and precipitation d. volcanic activity and organic decay e. the rock cycle

Environmental & Atmospheric Sciences

For a neutrally-charged atom to become a positively-charged ion of the same element it must

a. lose a proton. b. lose an electron. c. gain a proton. d. gain an electron. e. b and c

Environmental & Atmospheric Sciences

The Montreal Protocol:

A) is generally considered a diplomatic disaster by most environmentalists. B) was only signed by 24 countries. C) was not adhered to by the United States. D) will not create immediate, rapid drops in atmospheric CFC levels. E) was designed primarily to address the problem of global warming.

Environmental & Atmospheric Sciences

Animals are not an accurate environmental indicator as are plants, mainly because of their ________

A) body temperature B) lack of photosynthesis C) cell structures D) mobility E) size

Environmental & Atmospheric Sciences