The sun, moon, and planets are not fixed stars because they are part of our solar system, which is a dynamic and constantly changing system. The sun is the center of our solar system, and the planets orbit around it, while the moon orbits around the Earth. This movement and interaction between these celestial bodies make them different from fixed stars, which appear to maintain a relatively fixed position in the night sky. Additionally, the sun, moon, and planets have their own unique characteristics and behaviors, such as the sun's energy production, the moon's phases, and the planets' orbits and rotations, which distinguish them from fixed stars. **

No, the wind does not change the intensity of the sun. The intensity of the sun's rays is determined by factors such as the angle of the sun, the time of day, and the atmospheric conditions. The wind may affect how the sun's rays feel on our skin by creating a cooling effect, but it does not change the actual intensity of the sun. **

The sun does not have a fixed course or a specific goal in its movement. Its path across the sky is determined by the Earth's rotation and its orbit around the sun. The sun's movement is a result of the gravitational forces and the dynamics of the solar system, rather than having a specific destination or purpose. Therefore, the sun's movement is not guided by a fixed course or a goal. **

The sun is the engine of the trade wind circulation because it heats the Earth's surface unevenly. The equator receives more direct sunlight than the poles, causing warm air to rise at the equator and cool air to sink at the poles. This creates a pressure difference, with higher pressure at the poles and lower pressure at the equator. The trade winds are the result of air flowing from high pressure to low pressure, creating a consistent pattern of winds that blow from the subtropical high-pressure belts towards the equator. Therefore, the sun's uneven heating of the Earth's surface drives the trade wind circulation. **

Yes, it is still possible to get a tan in the shade and wind as long as there is sun. While direct sunlight is the most effective way to tan, UV rays can still penetrate through clouds and reflect off surfaces, allowing for tanning to occur even in the shade. Wind may slightly reduce the intensity of the sun's rays, but it will not completely block them. It is important to still use sunscreen and take precautions to protect your skin from sun damage, even when tanning in the shade and wind. **

Temperatures of 1 degree feel pleasant in the sun, without wind, because the sun's rays provide warmth and can make the air feel less cold. Additionally, the absence of wind means that there is no additional chill factor, allowing the temperature to feel more comfortable. In January, even though it may be 1 degree, the lack of direct sunlight and the presence of cold winds can make it feel much colder and less pleasant. **

If a country produces all its energy from renewable sources and there are days when neither the sun shines nor the wind blows, it would need to have a backup energy source to ensure continuous power supply. This could be in the form of energy storage systems such as batteries, pumped hydro storage, or other forms of energy storage. Additionally, the country could also invest in interconnection with neighboring countries to import energy when needed. It is important for the country to have a diversified energy mix and a robust energy infrastructure to ensure energy security during periods of low renewable energy generation. **