How can i add depth and texture to a drawing and which pencils should i use to do so

Anyone have a site they can give me so i can get some drawings tutorials?

Sarah and juan were running in the school track meet. the muscles in their arms and legs them run fast. other muscles that you cannot see were also at work. the most important muscles for this track meet were the muscles in their a) arms. b) eye. c) feet. d) heart.

Explain the design and purpose of the lamassu sculpture from khorsabad and then discuss the features you would use to create your own lamassu?