Please some helpp asap

Which of the following is not a required characteristic of a well-written melody? variation in pitch shape lyrics phrase

Which practices can be used to protect our supply of freshwater?

Which line from the text provides specific support for the idea that mantids are excellent hunters? a) first, mantids show an amazing mastery of hunting skills. b) mantids eat a wide variety of insects, including moths, crickets, bees, flies, and grasshoppers. c) they have large, powerful front legs, with spikes that them hold on to prey. d) finally, they are very personable, as far as insects go. (language arts)