What type of stones are these? i found them here in oregon, i first i thought they were a type of jade but i’m not so sure!! the larger one is covered in resin for shine, the smaller one is raw. both have green in them :)

if you can identify them can you also tell me how much they’re worth? thank you!!

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Altocumulus, altostratus, cirrocumuls, cirrostratus, cirrus, cumulonimbus, cumulus, nimbostratus, stratocumulus, stratus 8.) clouds with tallest vertical development 9.) low altitude clouds in solid layers that produce rain 10.) high altitude thin flat layers of clouds 11.) rain clouds that form under stable atmospheric conditions 12.) middle altitude clouds with globular appearance

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine