|
1. less polluting |
2. Biomass fuels |
3. within the earth |
4. solar radiation |
Complete the sentences. Choose NO MORE THAN THREE WORDS from the article for each answer.
Ex 4. Complete the sentences. Choose NO MORE THAN THREE WORDS from the article for each answer.
1. Alternative energy sources are usually … because we do not burn them.
2. … include grains, agricultural crops and aquatic plants.
3. They can make use of the heat from … to generate electricity.
4. OTEC changes … into electricity.
Ex 4. Complete the sentences. Choose NO MORE THAN THREE WORDS from the article for each answer.
1. Alternative energy sources are usually … because we do not burn them.
2. … include grains, agricultural crops and aquatic plants.
3. They can make use of the heat from … to generate electricity.
4. OTEC changes … into electricity.
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