Answer:
According to Michael Porter's value chain, Primary Activities are meant to create more value than they cost so that the company makes a profit while the support activities are meant to support the primary activities. 
Primary Activities include:
- Inbound movement of materials 
- Sales and promotion of products/services 
- Movement of final products to customers 
- Maintenance of products
Support Activities
- Management of cash inflows and outflows
- Acquisition of materials from external source
- Quality assurance, control systems and work culture 
- Research and development