The correct answer is A. silica.
The amount of silica found in the magma determines the viscosity. The higher the silica in magma, the higher the viscosity of a magma. So the correct answer is silica. It is not among the other choices.
Answer:
An inquiry into identity and relationships explores the following areas:
• Identity
• Beliefs and values
• Personal health
• Physical health
• Mental health
• Social heal
• Human relationships, including families, friends,
communities and cultures
• What it means to be human
Cold air is dense and warmer air is less dense and so as the cool dense air sinks the warm air rises and takes its place causing a convection current. This is the same with water and other gaseous and liquid substances.
Factors Affecting a business cycle:
- Business Investments
- Consumer Expectations
- External Shocks
- Intrest Rates
