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Do you know anything about green energy? There are a plethora of terms related to green energy. For example, renewable energy is any energy source naturally replenished like that derived from solar, wind, geothermal, or hydroelectric action. The energy produced from the refining of biomass is often classified as renewable. Coal, oil, or natural gas are considered finite sources, so if you want to learn more about green energy, you should take this quiz.

• 1.

### Which of the following is NOT a type of green energy?

• A.

Solar Energy

• B.

Biomass

• C.

Wind Energy

• D.

Biofuel

C. Wind Energy
Explanation
Wind Energy is not a type of green energy because it relies on the use of fossil fuels to generate electricity. While wind turbines harness the power of wind to generate electricity, the manufacturing, installation, and maintenance of these turbines often require the use of non-renewable resources. Additionally, wind energy can have negative environmental impacts such as bird and bat fatalities and noise pollution. Therefore, Wind Energy does not meet the criteria of being a sustainable and environmentally friendly source of energy, unlike Solar Energy, Biomass, and Biofuel.

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• 2.

### Thermal energy is the energy that determines the ___________ of matter.

temperature
Explanation
Thermal energy is the energy that determines the temperature of matter. Temperature is a measure of the average kinetic energy of the particles in a substance. The higher the temperature, the faster the particles move, resulting in more thermal energy. Therefore, thermal energy and temperature are directly related, with thermal energy being the energy responsible for determining the temperature of matter.

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• 3.

### Biodiesel is made from vegetable fats.

• A.

True

• B.

False

B. False
Explanation
Biodiesel is not made from vegetable fats. It is actually made from vegetable oils, animal fats, or recycled restaurant grease. The process of converting these feedstocks into biodiesel involves a chemical reaction called transesterification, which breaks down the oils or fats into methyl esters (biodiesel) and glycerin. Therefore, the correct answer is false.

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• 4.

### What percentage of the world's electricity is provided by green energy?

• A.

10%

• B.

20%

• C.

30%

• D.

40%

B. 20%
Explanation
Green energy refers to renewable sources of energy such as solar, wind, hydro, and geothermal power. The given answer of 20% suggests that approximately one-fifth of the world's electricity is generated from these sustainable sources. This indicates a significant contribution of green energy towards the global electricity supply, highlighting the growing shift towards cleaner and more sustainable energy alternatives.

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• 5.

### How many times denser is water than air?

• A.

800 times

• B.

600 times

• C.

300 times

A. 800 times
Explanation
Water is 800 times denser than air because the density of a substance is defined as its mass per unit volume. Water has a higher mass per unit volume compared to air, which means that it is more compact and tightly packed. This is due to the differences in the atomic and molecular composition of water and air. Water molecules are heavier and more closely packed together, resulting in a higher density.

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• 6.

### Biomass is a _________ energy source because the energy it contains comes from the sun.

renewable
Explanation
Biomass is considered a renewable energy source because the energy it contains comes from the sun. This is because plants and trees use photosynthesis to convert sunlight into energy, which is then stored in their biomass. When this biomass is burned or converted into biofuels, the energy is released, but the cycle can be repeated by growing more plants or trees. Therefore, biomass can be continuously replenished, making it a sustainable and renewable source of energy.

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• 7.

### Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy.

• A.

True

• B.

False

A. True
Explanation
Active solar techniques refer to the use of technology to directly convert sunlight into usable energy. Photovoltaic panels are devices that use semiconductors to convert sunlight into electricity, while solar thermal collectors capture sunlight to heat a fluid, which can then be used for various purposes such as heating water or generating electricity. Therefore, the statement that active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness energy is true.

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• 8.

### Where is solar energy derived from?

• A.

The Earth's natural light resources

• B.

The Sun

• C.

Solar panels

B. The Sun
Explanation
Solar energy is derived from the Sun. The Sun is a powerful source of energy that emits radiation in the form of heat and light. Solar energy is harnessed by using solar panels to convert sunlight into electricity. These panels absorb the Sun's rays and convert them into usable energy. Therefore, the correct answer is the Sun.

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• Mar 20, 2023
Quiz Edited by
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• Oct 21, 2012
Quiz Created by
Silverkitten

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