The thermostat of the heater may not turn beyond the snowflakes because it is likely indicating the lowest temperature setting on the heater. The snowflake symbol typically represents the cooling or lowest temperature setting on the thermostat, indicating that the heater will not go below that temperature. This is to prevent the heater from being set to an excessively low temperature that could potentially cause freezing or other issues in the space being heated. **

No, the 70 km/h zone does not continue if you turn left here. When you turn left onto a new road, you must adhere to the speed limit of that road. It is important to always be aware of the speed limit signs and adjust your speed accordingly when turning onto a new road. **

No, nutrient fertilizer does not turn brown. Nutrient fertilizers are typically formulated as granules, powders, or liquids that contain essential nutrients for plant growth. The color of the fertilizer may vary depending on the specific formulation, but it does not change color to brown as it is applied to the soil or plants. **

The Western Zone had more rights compared to the Soviet Zone. In the Western Zone, there was more political freedom, freedom of speech, and freedom of the press. Additionally, there were more opportunities for economic development and a higher standard of living in the Western Zone. In contrast, the Soviet Zone was characterized by strict censorship, limited political freedoms, and a planned economy under the control of the Soviet Union. **

In the context of the expression "trying goes beyond studying," "going beyond" means putting in effort and taking action beyond just studying. It implies actively engaging with the material, seeking out additional resources, and applying what has been learned in practical ways. This phrase suggests that success is not solely dependent on studying, but also on actively trying and experimenting with the knowledge gained. **

Hydroponic systems typically use a balanced, water-soluble fertilizer that contains all the essential nutrients plants need to grow. This type of fertilizer is specifically formulated for hydroponic systems to ensure optimal plant growth and development. Common ingredients in hydroponic fertilizers include nitrogen, phosphorus, potassium, calcium, magnesium, and various micronutrients. It is important to closely follow the manufacturer's instructions for mixing and applying the fertilizer to prevent nutrient deficiencies or toxicities in the plants. **

It is generally not recommended to turn off the aeration in the aquarium overnight. Aeration helps to maintain oxygen levels in the water, which is crucial for the health of the fish and other aquatic organisms. Without aeration, the water can become stagnant and oxygen-deprived, leading to stress and potential harm to the aquarium inhabitants. It is best to keep the aeration running 24/7 to ensure a healthy and stable aquatic environment. **

It is difficult to determine whether the lemon tree is beyond saving without more information about its current condition. Factors such as the extent of damage, the tree's overall health, and the specific issues it is facing will all play a role in determining whether it can be saved. It is best to consult with a professional arborist or horticulturist who can assess the tree and provide guidance on the best course of action to potentially save it. With proper care and attention, many trees can be revived and restored to health. **