If its chemistry:
Hg: Mercury/Transition metal
Ni: Nickel/Transition metal
Ti: Titanium/Transition metal
Death - A tsunami involves an ocean which wouldn’t cause a drought because the mass of water extinction the tsunami as a whole wouldn’t destroy every living thing on earth but cause a large death toll genetic change wouldn’t occur
Answer:
Dolphins and whales use echolocation by bouncing high-pitched clicking sounds off underwater objects, similar to shouting and listening for echoes. The sounds are made by squeezing air through nasal passages near the blowhole.
An organ or group of specialized cells in the body that produces and secretes a specific substance, such as a hormone
I think the correct answer from the choices listed above is the first option. T<span>he scientists were concerned about the glue used to reattach the birds’ tails because they </span><span>did not know if it would hold the tails in place very long. Hope this answers the question.</span>