Yes, polar bears need ice to survive. They rely on sea ice as a platform for hunting seals, their primary food source. Without the sea ice, polar bears would have a much harder time finding food and would struggle to survive. Climate change and the resulting loss of sea ice poses a significant threat to the survival of polar bears. **

No, not all organic substances are polar. Organic substances can be polar or nonpolar depending on their molecular structure. Polar organic substances have an uneven distribution of charge due to differences in electronegativity between atoms, while nonpolar organic substances have a symmetrical distribution of charge. Examples of polar organic substances include alcohols and carboxylic acids, while examples of nonpolar organic substances include hydrocarbons like alkanes. **

No, polar bears do not eat ice. They primarily feed on seals and other marine mammals that they hunt on the sea ice. The ice is their hunting ground, providing them with a platform to search for prey. While polar bears may come into contact with ice while hunting or traveling, they do not consume it as part of their diet. **

Yes, the polar ice caps are melting due to climate change. The increase in global temperatures is causing the ice caps to melt at an accelerated rate, leading to rising sea levels and other environmental impacts. This melting is primarily driven by the increase in greenhouse gas emissions, which trap heat in the atmosphere and contribute to the warming of the planet. The evidence of this melting is supported by scientific research and observations, and it is a significant concern for the future of our planet. **

The melting of the polar ice caps depicted in the movie Waterworld is not real. While climate change is causing the polar ice caps to melt at an alarming rate in reality, the extreme scenario portrayed in the movie is not based on scientific fact. The movie exaggerates the consequences of global warming for dramatic effect, and it should not be taken as a realistic portrayal of the actual impact of climate change on the polar ice caps. **

Environmentally friendly non-polar solvents are solvents that have low toxicity, low volatility, and are biodegradable. They are typically derived from renewable resources and do not contribute to ozone depletion or global warming. Examples of environmentally friendly non-polar solvents include limonene, terpenes, and certain types of vegetable oils. These solvents are being increasingly used as alternatives to traditional petroleum-based solvents in various industries to reduce environmental impact. **

Polar bears, brown bears, and ice bears are all different names for the same species, Ursus maritimus. They are the largest land carnivores and are well-adapted to their Arctic environment. The name "polar bear" refers to their habitat in the Arctic, "brown bear" refers to their color variation found in some populations, and "ice bear" is another name used for them in some cultures. Despite these different names, they are all the same species with similar physical characteristics and behaviors. **

Apart from the greenhouse effect, other causes of polar ice melting include black carbon deposits on the ice, which absorb heat and accelerate melting. Additionally, changes in ocean currents and temperatures can also contribute to polar ice melting. Human activities such as pollution and industrial processes can introduce pollutants that settle on the ice, reducing its reflectivity and causing it to absorb more heat, leading to melting. **