Answer:
Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can exploit these properties. Helium was the first gas used for filling balloons and dirigibles.
True
The definitions of positive don’t state any negative meanings, therefore it must be a completely “good” or “nice” meaning word
Hope this helps you
Which is not an echinoderm?
A.)starfish
B.)sea urchin
<h2>C.)squid</h2>
D.)sand dollar
<h3>Starfish, sea urchin and sand dollars are echinoderm. </h3>
