Clastic sedimentary rocks form by weathering processes which break down rocks into pebble, sand, or clay particles by exposure to wind, ice, and water. Clastic and nonclastic sedimentary rocks are the only members of the rock family that contain fossils as well as indicators of the climate (ripple marks, mudcracks and raindrops) that was present when the rock was formed.
Clastic sedimentary rocks are named according to the grain size of the sediment particles.
Answer: <em>Serotonin and Dopamine</em>
Dopamine is a neurotransmitter which is usually associated with attention and learning, and too of it little can be related to several forms of depression.
Also, Serotonin plays a part in the development of mood, appetite and is associated with sleep, whereas; too little of serotonin is related to depression.
Answer:
Globalization is the growth in networks of economic, political, social, military, scientific, or environmental interdependence to span worldwide distances.
C. Early humans , so before settlers
