Final Answer:
Sand consists of small, solid particles, and sugar is a crystalline substance with a similar granular structure. Therefore, the correct answer is option a) Sand and c) Sugar.
Step-by-step explanation:
In Task 1, the goal is to combine substances effectively. Sand and sugar are both dry, granular materials, making them suitable for mixing. Water (b) is a liquid, and oil (d) is also a liquid, and these substances may not mix well with the dry components in this context.
To elaborate, sand consists of small, solid particles, and sugar is a crystalline substance. When combined, they can create a homogeneous mixture. The dry nature of sand and sugar allows for easy blending without the need for a solvent. However, water and oil, being liquids, might not integrate seamlessly with the solid particles and could lead to separation or uneven distribution.
Calculations are not required for this particular question as it involves a conceptual understanding of the properties of substances. The choice of sand and sugar is based on their physical state and compatibility for creating a mixture in the given task.
In practical scenarios, understanding the properties of different substances is crucial for effective chemical processes and ensures the desired outcomes in various applications. Therefore, the optimal combination for Task 1 is sand and sugar, providing a solid and homogeneous mixture.
Therefore, the correct answer is option a) Sand and c) Sugar.