D. rift valleys.
Trenches occur at convergent oceanic plates; fossils are extremely old bones, bodies, or footprints, which have gotten so old the intervening years have turned them into rock; U-shaped valleys are valleys which are shaped like the letter U, and are usually formed by glaciers, which tend not to occur underwater very often.
"Atlantic Ocean" <span>is the name of second largest ocean
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Answer:
The numbers indicate the amount of air pressure, in millibars, that each line represents. These lines and numbers are necessary find out exactly where High and Low pressure systems are on the maps.
Answer:
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down rainforests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.
Cacti can be found in dry and hot climate ( mainly in deserts ).
