What are historical sources PDF?

What are historical sources PDF?

These are original materials, created in the period. They are generally just the information or artifact, and do not include evaluation or commentary. These sources offer interpretation or commentary on primary sources. They include second hand accounts or analysis.

What are the 3 sources of water?

3.1 Types of water source. In Study Session 1 you were introduced to the three main sources of water: groundwater, surface water and rainwater. In arid regions where seawater is accessible (such as in the Middle East), desalination (the removal of salts from water) is used to generate drinking water.

What are the types of water sources?

4.3 Sources of water

• 1 Surface water. Rivers, streams, lakes, and ponds are widely used as water sources in Ethiopia, especially in rural areas (Figure 4.5).
• 2 Groundwater. An aquifer is an underground layer of water-bearing rock.
• 3 Rainwater.

Is tap a source of water?

Calling a water supply “tap water” distinguishes it from the other main types of fresh water which may be available; these include water from rainwater-collecting cisterns, water from village pumps or town pumps, water from wells, or water carried from streams, rivers, or lakes (whose potability may vary).

What are the sources of ground water?

Groundwater sources are beneath the land surface and include springs and wells. As can be seen from the hydrologic cycle, when rain falls to the ground, some water flows along the land to streams or lakes, some water evaporates into the atmosphere, some is taken up by plants, and some seeps into the ground.

What is the source of groundwater Class 7?

rain

What is surface source of water?

Surface water originates mostly from rainfall and is a mixture of surface run-off and ground water. It includes larges rivers, ponds and lakes, and the small upland streams which may originate from springs and collect the run-off from the watersheds.

What is the main natural source of water?

Rain water Rainwater

What is the best source of water?

This article discussed 19 water-rich foods that will help you stay hydrated.

1. Watermelon. Water content: 92%
2. Strawberries. Water content: 91%
3. Cantaloupe. Water content: 90%
4. Peaches. Water content: 89%
5. Oranges. Water content: 88%
6. Skim Milk. Water content: 91%
7. Cucumber. Water content: 95%
8. Lettuce. Water content: 96%

Which is not a surface source of water?

Potable water means drinking water. Well, river and lake contain drinking water as these all contain either rainwater and groundwater which is suitable for drinking. The sea which contains salty water that is not suitable for drinking is not a source of potable water.

What is Surface source?

Surface water is any body of water above ground, including streams, rivers, lakes, wetlands, reservoirs, and creeks. The ocean, despite being saltwater, is also considered surface water.

Which fruit has highest water content?

Water Content of Fruits For example, fruits such as apricots, blueberries, oranges, peaches, pineapples, plums and raspberries contain over eighty percent water. Melons such as cantaloupe and watermelon have some of the highest water content, at more than 90 percent.

What is the cleanest source of water?

Spring water