Which two substances are among the six most abundant elements in living things?
DA Calcium
DB Nitrogen
Helium
Chlorine

Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?

Greg goes to a high school and observes the way students talk to each other. he makes notes on the words used, the atmosphere of the school and the way the students present themselves to each other. this is an example of a( research method.

Drag the word to the right box in the sentences. words may be used once or not at all. jewish christian muslim buddhist most people living in southwest asia are . the majority of people living in cyprus however are and the majority of people living in israel are