Using the periodic table, choose the more reactive metal. (hint: reactivity of ga > al: reactivity of zn > ga) pt or ag

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.