Primary sources are original materials/information on which other research is based. It includes journal articles of original research, conference papers, dissertations, technical reports, and patents. Primary sources are also sets of data, such as health statistics, which have been tabulated, but not interpreted.
Answer;
-Sedimentary rocks
Explanation;
-Processes on and near Earth’s surface produce sedimentary rocks.
-Sedimentary rocks are rocks formed at or near the Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures.
-Sedimentary rocks are the most common rocks exposed on the Earth’s surface but are only a minor constituent of the entire crust, which is dominated by igneous and metamorphic rocks.
-Sedimentary rocks are produced by the weathering of preexisting rocks and the subsequent transportation and deposition of the weathering products.
Answer:
Palm trees produce flowers whiles masses do not
Swine always have the same kinds and numbers of chromosomes.