What causes acid rain and global warming?
What causes acid rain and global warming?
A warmer atmosphere would influence the occurrence and severity of acid rain. Many of the chemical reactions that lead to the formation of acid rain are affected by temperature. Higher temperatures usually accelerate reactions, suggesting that global warming is likely to increase the formation of acidic materials.
What are the effects of acid rain on limestone?
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.
Which term describes the movement of water through rock?
The water cycle is also known as the hydrological cycle . It is called a cycle because water continuously moves around the system. Rivers are part of this cycle. The illustration below shows how water changes state through the cycle.
What is the process of runoff?
Runoff occurs when there is more water than land can absorb. The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. Glaciers, snow, and rain all contribute to this natural runoff. Runoff also occurs naturally as soil is eroded and carried to various bodies of water.
What happens to water when it hits the ground?
The water moves downward through empty spaces or cracks in the soil, sand, or rocks until it reaches a layer of rock through which water cannot easily move. The water then fills the empty spaces and cracks above that layer. Water seeping down from the land surface adds to the ground water and is called recharge water.
What happens to the rain water after reaching the ground?
Rainwater, or snow melt, either soaks into the ground to become groundwater, evaporates, or flows over the surface of the land. The water that flows over the ground is called stormwater or runoff.
How is underground water made available to humans?
Aquifers and Karst Free water migrating within rock pores, cracks and fissures is called groundwater. Groundwater constitutes the largest source of water used by Man for drinking and for many other purposes. It circulates in porous rocks called aquifers.
Where is underground water stored?
aquifers
How does the water get underground?
How does the water get underground? The Earth’s surface is permeable, which means that it takes in water in like a sponge. Water gets into an aquifer from the land surface. Typically, precipitation falling onto the Earth’s surface soaks into the ground and flows down to the water table.
How long does water stay underground?
around one to two months
Does rain fill your well?
While your well is a 6” hole in the ground, it is not directly replenished by rainfall, as you might expect a cistern to function. With less rain, or changes in aquifer structure, the well becomes non-water bearing – i.e. dry. Your well may not ‘fill up’ when it rains, but it does reap the indirect benefits.
Can we run out of groundwater?
While our planet as a whole may never run out of water, it’s important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world’s freshwater can be found in only six countries. Also, every drop of water that we use continues through the water cycle.