Which geologic feature forms when a central crack forms where a thin section of earths crust breaks and molten rock seeps out

What process allows for the development of haploid sex cells? mitosis meiosis fertilization pollination

Alaboratory investigation included examine prepared slides of pond water singled celled organisms with a nucleus and either cilia or flagella were visible these organism probably belong to the kingdom

What is the chemical formula for dihydrogen monoxide?