Radar because the waves are reflected back off of the source so with the reflection it's hard for them to see earth surface.
Answer:
Conglomerate rock
Explanation:
This is a type of sediment rock that has a coarse-grained texture. It is made up of small pieces of gravel-sized clasts, such as pebbles and cobbles. The mechanism of conglomerate rock formation is by consolidation and lithification.
Conglomerates are found in a variety of sedimentary environments such as, Deepwater marine, Shallow marine, Fluvial, Alluvial, and Glacial environments.
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Darwinism is a theory<span> of biological </span>evolution<span> developed by the English naturalist Charles Darwin (1809-1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.</span>