Answer at least TWO questions from this section. (a) State four reasons for using plant on a construction site It's (b) Explain the operation of a tractor shovel. (6 marks)

(a) Four reasons for using plants on a construction site include:<br /><br />1. **Environmental Benefits**: Plants can help in reducing the carbon footprint by absorbing carbon dioxide and releasing oxygen, thus improving air quality. They also act as natural filters, removing pollutants from the air.<br /><br />2. **Erosion Control**: Planting vegetation on construction sites helps to stabilize the soil, preventing erosion and landslides. This is particularly important on slopes and areas prone to heavy rainfall.<br /><br />3. **Aesthetic Appeal**: Plants can enhance the visual appeal of a construction site, making it more attractive and less eyesore. This can be beneficial for both the community and the company's image.<br /><br />4. **Noise Reduction**: Vegetation can act as a natural barrier to noise, reducing the impact of noise pollution from construction activities. This can be particularly useful in urban areas where noise control is a significant concern.<br /><br />(b) The operation of a tractor shovel involves several key steps:<br /><br />1. **Loading**: The tractor shovel is equipped with a bucket that is used to scoop up material. The driver controls the bucket's movement using a set of levers. The bucket is attached to a hydraulic system that allows it to open and close.<br /><br />2. **Digging**: Once the bucket is positioned in the material to be moved, the driver activates the bucket's teeth to penetrate the ground. The tractor's engine provides the power needed to dig into the soil or gravel.<br /><br />3. **Lifting and Moving**: After the material is scooped into the bucket, the driver uses the levers to lift the bucket. The tractor's engine and hydraulic system work together to lift the bucket and move it to the desired location.<br /><br />4. **Dumping**: When the bucket reaches the dumping area, the driver releases the hydraulic system to open the bucket, allowing the material to be deposited. The bucket is then lowered back to the ground, ready for another load.<br /><br />5. **Steering and Maneuvering**: Throughout the operation, the driver controls the tractor's steering to navigate the machine around the construction site. The tractor's wheels and tracks provide the necessary traction and stability for movement.<br /><br />6. **Safety Considerations**: Operators must adhere to safety protocols, including wearing appropriate personal protective equipment (PPE) and ensuring that the tractor is properly maintained and serviced to prevent accidents.<br /><br />These steps outline the basic operation of a tractor shovel, which is a versatile and essential piece of equipment in many construction and excavation projects.