The mass of makes up 70 percent of all planetary mass in the solar system

answer; (cognitive   dissonance);

an aneroid barometer is different from a mercury barometer in that it provides readings that increase as air pressure increases.

hope it : )

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; a cost benefit analysis;