Earthquakes produce three types of seismic waves: primary waves, secondary waves, and surface waves. Each type moves through materials differently. In addition, the waves can reflect, or bounce, off boundaries between different layers.
Biological weathering is caused by living organisms, such as microbes, animals, and plants. Water, oxygen, and rocks are nonliving things (though water and rocks may be capable of weathering), and only plant roots fits the definition of biological weathering. So the correct answer for #1 is A.
Frost wedging occurs when the little water content in rock freezes, expanding and forcing the rock apart. Eventually, enough freeze-melt cycles causes the rock to break apart little by little. This is due to ice's density being less than that of water, meaning that it is because water expands when frozen. So the answer to #2 is A.
Answer:
Scale
Explanation:
The scale is an instruction in which there is a system of marks that are ordered or in sequence way for the intervals i.e. fixed is used for measurement.
The scale is the ration that determines the units presented a proportional relationship that lies between drawings and the items that are full size
Therefore the scale is the answer
I think the correct answer from the choices listed above is option D. Mineral deposits underground, farm products and lumber from forests are resources <span>of production called "natural resources" since they came from or produced in nature. Hope this answers the question.</span>
