Answer: They existed for a short span of time.
Explanation:
Index fossils are also referred to as the indicator fossils and they are simply used to define the faunal stages.
Some of the characteristics possessed by the index fossils include:
• geographic distribution that's wide
• short vertical range
• rapid evolutionary trends.
It would be Puerto Rico, though it is not a state, it is still part of the U.S. Hope it helps!
Answer:
Rect. Prism SA= 251. 75ft²
Cube SA= 8664in²
Cube SA= 6a²
Explanation:
SA= 2(lh+wh+lw)
Cube SA= 6a²
Rect. Prism SA
Assuming length(l)=11.5, width(w)=3.25 and height(h)=6
SA=2(lh+wh+lw)
=2(11.5×6+3.25×6+11.5×3.25)
=2(69+19.5+37.325)
=2×125.875
=251.75ft² (rounding is optional if you like)
Cube SA
SA=6a² (<em>a</em><em> </em><em>referring</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>edges</em><em>/</em><em>sides</em><em>)</em><em> </em>
<em> </em><em> </em><em> </em><em> </em><em> </em>=6× 38²
=6×1444
=8664in²
Hope this helped.
The answers are:
- Rainforests are located near the equator; the rainforests require special conditions to be able to prosper, like constant summer with relatively high temperatures, and almost daily precipitation, and these conditions are found around the equator.
- Species found in the rainforests may be used to cure disease; there's thousands of plants/herbs that have been proven to cure lots of diseases for which the pharmaceutical industry hasn't been able to find proper medications.
- Species found in the rainforest decrease each day; because of the destruction of the rainforest on a daily basis, lots of species, both faunal and floral, are being exterminated and thus lost forever from the face of the Earth.
