In which scenario is the conservation of a natural resource being practiced?

A. A timber company only cuts some trees down and replaces them with new trees.
B. A solar energy company harvests energy from sunlight.
C. A mining company extracts all of the minerals from a rock and does not replenish them.
D. A wind energy company installs wind turbines in a residential area.

The scenario in which the conservation of a natural resource is being practiced is Option A: A timber company only cuts some trees down and replaces them with new trees.

To determine which scenario practices the conservation of a natural resource, let's examine each option:

A. A timber company only cuts some trees down and replaces them with new trees.
In this scenario, the timber company is practicing conservation by selectively cutting down trees and replanting new ones. This practice allows for the sustainable use of timber resources while ensuring their long-term availability. Therefore, option A practices the conservation of a natural resource.

B. A solar energy company harvests energy from sunlight.
In this scenario, a solar energy company is harnessing energy from sunlight, which is a renewable resource. The process of converting sunlight into energy does not deplete or exhaust the resource, meaning it is being conserved. Therefore, option B practices the conservation of a natural resource.

C. A mining company extracts all of the minerals from a rock and does not replenish them.
In this scenario, the mining company is depleting the minerals from the rock without replenishing them. This practice does not involve the conservation of the natural resource, as it will not be available for future use. Therefore, option C does not practice the conservation of a natural resource.

D. A wind energy company installs wind turbines in a residential area.
In this scenario, a wind energy company is using wind, which is a renewable resource, to generate energy. Like solar energy, wind energy does not deplete the resource and is therefore a form of conservation. Therefore, option D practices the conservation of a natural resource.

In conclusion, options A and B are scenarios in which the conservation of a natural resource is being practiced.