1. What does it mean that a source of energy is nonrenewable?
A. There is only a limited supply that can be used.
B. Once used, it needs to be reprocessed for reuse.
C. It does not create pollution when used.
D. With proper administration, it can be reused.
2. Crude oil was formed millions of years ago from the remains of living things. Where is crude oil found today?
A. under dry land and under the ocean
B. floating in the ocean
C. inside rocks
D. inside living things that have died
3. Which fuel creates the most air pollution when burned?
A. clean fuels
B. electricity
C. natural gas
D. coal
4. When were fossil fuels formed?
A. tens of years ago
B. millions of years ago
C. tens of billions of years ago
D. hundreds of years ago
1. A. There is only a limited supply that can be used.
2. A. Under dry land and under the ocean.
3. D. Coal.
4. B. Millions of years ago.
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1. The answer to question 1 is A. There is only a limited supply that can be used.
To get this answer, we need to understand the meaning of "nonrenewable" in the context of energy sources. Nonrenewable energy sources are those that cannot be replenished in a short period of time. These sources take millions of years to form and cannot be easily replenished within a human lifespan or even several generations. Examples of nonrenewable energy sources include fossil fuels like coal, oil, and natural gas.
The limited supply of nonrenewable energy sources means that once they are used up, they cannot be easily replaced. This is in contrast to renewable energy sources, such as solar or wind power, which are naturally replenished and can be utilized indefinitely.
2. The answer to question 2 is A. under dry land and under the ocean.
To determine the location of crude oil today, we need to understand its origin and formation. Crude oil is formed from the remains of ancient marine organisms that accumulated over millions of years. These organisms, such as algae and zooplankton, lived in bodies of water and were eventually buried under layers of sediment.
Today, crude oil is found in underground reservoirs, both on land and under the ocean. It can be extracted by drilling wells into these reservoirs. The specific location of crude oil varies depending on geological formations and exploration efforts.
3. The answer to question 3 is D. coal.
To determine the fuel that creates the most air pollution when burned, we need to understand the emissions from different fuels. When fuels are burned, they release various pollutants into the air, contributing to air pollution and potential health hazards.
Among the options listed, coal is known to create the most air pollution when burned. Coal combustion releases large quantities of carbon dioxide (a greenhouse gas) as well as sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants contribute to climate change, smog, acid rain, and respiratory issues.
Clean fuels like renewable energy sources or natural gas generally produce lower levels of pollution compared to coal.
4. The answer to question 4 is B. millions of years ago.
To determine when fossil fuels were formed, we need to understand the process of fossilization. Fossil fuels, such as coal, oil, and natural gas, are formed from the remains of ancient plants and animals that lived millions of years ago.
These organic materials were buried under layers of sediment over time, subjected to heat, pressure, and geological processes. Over millions of years, the organic matter underwent chemical and physical changes, transforming into fossil fuels.
It is important to note that while the formation of fossil fuels took millions of years, their extraction and consumption by humans have occurred over a much shorter time period.