What is good source of energy ?

Explanation

To determine what constitutes a good source of energy, we can break down the criteria into five key requirements. Here’s a step-by-step explanation:

### Step-by-Step Solution:

1. **Easily Accessible**: A good source of energy should be easy to access. This means it should be readily available in sufficient quantities, so we don't have to expend excessive effort or energy to obtain it. For example, solar energy is abundant and can be harnessed easily in many regions.

2. **Economical**: The cost of the energy source should be reasonable. A good energy source should not be prohibitively expensive, allowing people to use it without incurring high costs. For instance, wind energy is often cheaper than fossil fuels in many areas.

...