PLS ANSWER 10 POINTS!! Which of the following metals gives some fireworks their blue color?
A. manganese
B. neon
C. calcium
D. copper

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness