In dolphins and porpoises, an organ called the ________ focuses the sounds they generate
A) junk
B) melon
C) museau du singe
D) nostril
E) spermaceti organ
B
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What would be the reduction in heat loss through the ceiling of a house if the insulation R-value of 19 is increased to 40 by adding more insulation? The ceiling area is 2,000 ft2
What will be an ideal response?
Coarsely crystalline igneous textures indicate that
A. the rock broke apart as it flowed. B. there was a lot of gas in the magma. C. the rock cooled quickly. D. the rock cooled slowly. E. the ash and pumice were hot and became compacted.
What are the current impacts of climate change in Europe?
A) Sea ice is dwindling. B) There is sparse snow cover in arctic Scandinavia. C) There are frequent droughts in the water-starved Mediterranean region. D) Dwindling sea ice, and sparse snow cover in arctic Scandinavia.
The islands of Hawaii are essentially a series of shield volcanoes built upward from the ocean floor over millions of years.
Answer the following statement true (T) or false (F)