Frequency of Earthquakes with Different Magnitudes
Magnitude Range Frequency of Occurrence
3.0 - 3.9 49,000 per year
4.0 - 4.9 6,200 per year
5.0 - 5.9 800 per year
6.0 - 6.9 120 per year
7.0 - 7.9 18 per year
8.0 - 8.9 1 per year

There are over 56,000 earthquakes recorded yearly on Earth. Many occur on the ocean floor while others are so small that they can only be detected using special equipment. A small percentage of earthquakes can lead to massive destruction on Earth, including loss of life and property.

Which of these earthquakes would most likely lead to the most damage to human lives?
A) a 7.2 earthquake in Los Angeles
B) a 8.5 earthquake in the rain forest
C) a 6.0 on the coast of Alaska
D) a 3.6 earthquake in downtown Chicago
PLEASE BE RIGHT

Idont know but good luck; )

Hunting in the darksome fish rely on senses beyond sight. in the darkness of the marianas trench, a fish called the rattail has an extremely sensitive sense of smell. the fish uses scent, rather than sight, to steer toward food. once it's near food, the rattail uses a special organ on the bottom of its chin to guide itself by feel.marine snowone staple of the deep sea diet is "marine snow," flakes of organic, edible substances that sink down from the upper ocean. animals at the ocean's bottom find sustenance in everything from the bodies of dead creatures to fecal matter. marine snow is diverse enough to support numerous species. for instance, several species of snails and worms feed exclusively on deceased whales.microorganismsthe deep sea is an intricate ecosystem, and even the ocean floor itself plays a part. hydrothermal vents are cracks in the sea floor where erupting magma mixes with ocean water to produce plumes of hot, sulfur-rich chemicals. some microbes can use these chemicals for energy, sustaining their existence and that of the animals who depend on their roles in the deep sea food chain.