25 points which plastic do you think could best contain extremely corrosive material? why? choices: pet or pete, hdpe, pvc, ldpe, pp, ps.

Why is the melting of ice a physical change ?

Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.