Which two statements are scientific claims? O A. The apparent movement of Mars across the sky influences how
people behave.
B. The polar ice caps of Mars consist mainly of carbon dioxide ice.
C. Mars is the best planet in the solar system for humans to explore
further,
D. Images of Mars show that it once had liquid water flowing on its
surface.

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

Identify the electromagnets with poles that are reversed from the electromagnet shown above