Question

some objects in space are created from clouds of gas and dust. what will happen if the cloud does not have enough mass? a core will form. a star will not form. a protostar will form. a nebula will not form.

Explanation:

Stars form from clouds of gas and dust (nebulae). For a star to form, the cloud must have enough mass so that gravitational collapse can occur, leading to high - enough temperatures and pressures for nuclear fusion (the process that powers stars). If the cloud does not have enough mass, gravitational collapse will not be sufficient to start nuclear fusion, and a star will not form. A core (Option A) and a protostar (Option C) are stages in the star - formation process that require significant mass - driven gravitational collapse. A nebula (Option D) is the initial cloud of gas and dust itself.

Answer:

B. A star will not form.