Trenches are formed by subduction, a geophysical process in which two or more of Earth's tectonic plates converge and the older, denser plate is pulled beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust ( the lithosphere) the bend and form a steep, V- shaped depression.
A fertilized egg developing is called an embryo. You can rule out unfertilized because it implies that the egg contains no developing life form. You can also rule out the fertilized egg as it is mentioned in the question previously.
Answer: A
Explanation: Stainless steel
A country like China would probably be in Stage 4 of the population with the low birth rate and low death rate due to their economic power have technology to prolong and save their citizen from diease and condoms