Answer:
Non-engineered/owner-build structures are more vulnerable because they can be poorly built. Without proper knowledge to build the right structure, the structure is more at risk of abnormalities or destruction from hazards such as rain, hail, strong winds, and debris.
The element has 7 protons and 9 neutrons.
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It is an inference that
<span> there are tracks from three different animals in the rock.</span>
