A sample contains 0.1895 g

of salt per 50 g of seawater.

What is its salinity?

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

answer: they produce more slow than unicellular organisms.

answer seismograph;

answer///carbon;