Answer:
A coral reef is a reef-shaped structure in the sea, formed by anemones and which over time becomes large enough to have a significant ecological and physical impact on its environment. These are the largest structures built from living organisms in the world. Coral reefs are complex marine ecosystems. They are a biotope (area of life) of a biocenosis (community of living beings) consisting of plants and animals, for example worms, shellfish, sponges, thorns and crustaceans. Coral reefs play a significant role as “breeding grounds” for the offspring of fish inhabiting the high seas.
Answer:
In a plane, if a line is perpendicular to one of two <u>parallel</u> lines, then it is also perpendicular to the other.
Backfilling is the right one
a region that is made up of different places that are linked and function as a unit
Answer:
The volume of the given pyramid is 340.8 cubic feet.
Explanation:
The volume of an object is a consideration of the dimensions of the object with respect to 3 dimensions.
volume of a pyramid =
x base area x height
But,
base area = length x width
= 12 x 12
= 144 square feet
So that,
volume of the pyramid =
x 144 x 7.1
=
x 1022.4
= 340.8
The volume of the given pyramid is 340.8 cubic feet.