Explanation:
From the studies done on seismic elastic waves, it has been discovered that the innermost core of the earth is a solid concentric layer. Seismic P and S waves can be propagated through solids but the s-waves are cut off in contact with a liquid medium. This is because s-waves are shear waves and fluids do not shear.
- At the outer core, the s waves is cutoff and it reappears in the region of the inner core.
- This shows that the inner core is solid.
- The inner core is made up of iron and nickel with some other siderophiles.
- At the inner core, the pressure is very great. Pressure here is about 350gigapascal.
- This huge pressure compresses matter into solids despite the very high temperature.
- Also, during the differentiation of the earth, the heavier minerals moves downward to the core due to their density. Metals in the core have density of about 13g/cm³.
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The study of one type of evidence of evolution is called embryology, the study of embryos. An embryo is an unborn (or unhatched) animal or human young in its earliest phases
So the answer is basically EMBRYOLOGY
Answer:
Virtually all toad skin contains bufotoxin not to mention a host of external and internal bacteria. So, they are considered unsafe and some, like the cane toad, dangerous for human consumption.
Explanation:
The answer is : A bios or cmos jumper. The jumper acts as a switch by closing (or opening) an electrical circuit. Clearing the CMOS on your motherboard will reset your BIOS settings to their factory defaults. After clearing the CMOS, you'll need to access the BIOS setup utility and reconfigure your hardware settings.
Answer:
Lysosomes
Explanation:
break down food molecules, waste products, and old cells.
