Answer:
When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details. Stone surface material may be lost all over or only in spots that are more reactive.
Explanation:
You might expect that sheltered areas of stone buildings and monuments would not be affected by acid precipitation. However, sheltered areas on limestone and marble buildings and monuments show blackened crusts that have peeled off in some places, revealing crumbling stone beneath. This black crust is primarily composed of gypsum, a mineral that forms from the reaction between calcite, water, and sulfuric acid. Gypsum is soluble in water; although it can form anywhere on carbonate stone surfaces that are exposed to sulfur dioxide gas (SO2), it is usually washed away. It remains only on protected surfaces that are not directly washed by the rain.
Answer: The endocrine system is made up of glands that make hormones, Hormones are the body's chemical messengers. They carry information and instructions from one set of cells to the other.
Explanation:
We would all die, because:
Without oceans; no water.
Without Oceans; no rainforest.
Without Oceans; fish.
Without Oceans: no rain.
We need water to survive, we need fish to eat, we need rain because for many places on earth that is all the water they get. Without the Ocean, we probably wouldn't have the glaciers, which keep the whole world cool, the Navy, Marine Corps, Marine Biologists wouldn't have jobs. We would all die without the Ocea.
Answer:
the flowers
Explanation:
because the flowers are the parts that turn into seed
They breath from the oxygen and their roots that are in the soil