Lesson 7

Question 1

Describe good conditions for solar energy production

Answer 1

• Sunlight, clear skies and low air pollution
• Long days

Question 2

Describe good conditions for wind energy production

Answer 2

• Long coastline with windy climate
• Large open areas
• Ideal: 25-35

Question 3

Describe good conditions for HEP

Answer 3

• Large areas of moving water
• Long, steep-sided valley for good gradient and narrow exit for efficient water collection
• Rain

Question 4

Explain formation of coal

Answer 4

• Accumulation of organic debris buried under layers of sediment for millions of years
• Decomposition of debris slowed down due to anaerobic conditions
• Overtime, more heat and pressure applied which causes coalification

Question 5

What is coalification?

Answer 5

Moisture and volatile materials decreased while carbon content increases

Question 6

Explain formation of gas and oil

Answer 6

• Organic material buried at bottom of sea
• Overtime, more heat and pressure, gradually forming oil and under more extreme conditions, gas
• Increasing pressure forces gas upwards into porous rock and eventually trapped at cap rock (impermeable rock)
• Reservoir of oil and gas formed at cap rock