Is the only item that exist on earth at standard pressure as a solid liquid and gas

What was the land like over 500 million years ago? what was under the sea?

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Your two friends just told you what to order for them at the drive through fast food restaurant. you give the order but when the food comes about 10 minutes later, you don't remember what each of your friends ordered your memory of the order was in __ memory. a. semantic b. flashbulb c. long-term d. short-term i think i know but i'm not really sure