Because zinc can combine with other substances but cannot be changed into a simpler substance by an ordinary chemical process, zinc is classified as -
O an element
O an acid
O a mixture
a compound

How does a gymnosperm prevent itself from pollinating the same tree

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic