Chapter 2 Section 2

Surface Water Sources

Trivia: Did you know that underground storage is NOT a common source of surface water? Surface water mainly comes from streams, rivers, and lakes. These sources play a vital role in providing water for various purposes like drinking, irrigation, and recreation.

Exploring Earth's Water Supply

• Less than 1 percent of Earth's water supply comes from surface water.

• Streams and rivers are common sources of surface water.

• Lakes are important sources of surface water.

• Most of Earth's available freshwater is stored underground.

• The water cycle is the movement of water from Earth's surface to the atmosphere and back.

Water Shortages

• Water shortages are a major challenge related to Earth's water supply.

• Population growth, climate change, and inefficient water management contribute to this problem.

• Water scarcity affects agriculture, industry, and human health.

• Conservation efforts and sustainable water management are crucial to address this issue.

Exploring Earth's Water Supply

The water cycle is a continuous process that involves the evaporation of water from Earth's surface, its rise to the atmosphere as water vapor, and its eventual condensation and precipitation. This cycle allows for a constant supply of water on Earth. However, water problems such as shortages, pollution, and flooding pose challenges. Droughts and overuse can lead to water shortages, while pollution from chemicals and household waste can contaminate the water supply. Flooding caused by heavy rains can damage property and threaten lives.

Water: Essential for Life

Trivia: Water provides us with food, energy, and recreation. It is critical for our survival and makes our lives richer and more enjoyable. Water is also used to produce electricity. Without water, life on Earth would not be possible.

Exploring Earth's Water Supply

Water is essential for life on Earth. It provides us with food, energy, and recreation. Fruits, vegetables, and animals all depend on water for growth. Dams harness the power of moving water to produce electricity. Rivers, lakes, and oceans offer opportunities for swimming, fishing, surfing, and sailing. Water is critical for our survival and makes our lives richer and more enjoyable.