gradually change direction, while create a sense of motion. a.
(1) curvilinear lines; (2) diagonal lines
c.
(1) diagonal lines; (2) freeform shapes
b.
(1) texture; (2) horizontal lines
d.
(1) curvilinear lines; (2) color

We are not able to see the stars. light prevents our seeing the stars. i hope it kinda : )

When scientist examine data such as historical documents, they are using the "scientific methods"

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.

Yes yes yes very good