When We Look at an Object That Is 1,000 Light-Years

question 69

Multiple Choice

When we look at an object that is 1,000 light-years away we see it

• A)as it was 1,000 years ago.
• B)as it was 1,000 light-years ago.
• C)as it is right now,but it appears 1,000 times dimmer.
• D)looking just the same as our ancestors would have seen it 1,000 years ago.

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Definitions:

Pollutants

Substances that contaminate the environment, causing harm to ecosystems and human health.

Tradable Emissions Permits

A market-based approach to controlling pollution by providing economic incentives for achieving reductions in the emissions of pollutants.

Equilibrium Price

The price at which the quantity of a product demanded by consumers equals the quantity supplied by producers.

Equilibrium Quantity

The supply and demand for goods or services are balanced at the current market price.