PLS help me for my assignment, here's a lot of points :D What are examples of social, ethical, economical and legal issues of embryonic screening?

The body is protected against harmful flu viruses by

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid