Question 1 2 pts what was the major kind of scientific evidence that, months before the 1991 eruption, led a philippine geophysicist to suspect that pinatubo might erupt? tsunami many small earthquakes eruption of basaltic lava flows pyroclastic flows

The point where two air masses meet is called a

What must happen for new french words to be published in official dictionaries? a. they must be approved by the french academy b. they must be voted on by the people of france c. they must be used by famous french writers d. they must be used by philosophers a. they must be approved by the french academy

Which of the following regions suffers the most from acid rain? a. the area around vancouver c. the area below atlanta b. the area below detroit d. the area above montreal