Large quantities of tritium were released into the atmosphere in the 1950s and 1960s during atmospheric nuclear testing. this tritium fell back to earth in precipitation. assume that the precipitation joins runoff that goes directly to an open watershed. where would you expect to find the tritium next? a. in a closed watershed b. in the atmosphere c. in an iceberg d. in the ocean

 D. In the ocean

A watershed can be defined as regions of land where all surface water drains into the same place. It is a land that is occupied with water drained from interconnected  rivers, and lakes.  These drainage streams may aggregate in the ocean.

According to the above information the open watershed system likely to dispense off tritium in the ocean because the open watershed water may flow and combine with other reservoirs of water like ocean.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.