What are SETI researchers looking for? worldwide communications
coded signals from space
random radio waves from stars
radio signals from quasars

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

When it is a high tide in georgia, usa, where on earth is another place that is also experiencing a high tide

In the diagram, δgef and δhef are congruent. what is the value of x?