What makes life possible on the Earth?Group of answer choicesphotosynthesishydrogen bonds in wateroxygenwaterice

All of the options listed contribute to making life possible on Earth, but if we have to choose one, it would be water. Here's why:

1. Water: Life as we know it is based on water. Water is a universal solvent, meaning it can dissolve more substances than any other liquid. This is important because it allows nutrients and chemicals to be transported throughout our bodies and the environment. Water also has a high heat capacity, which helps regulate temperature on Earth.

2. Photosynthesis: This is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of carbon dioxide and water. It produces oxygen as a byproduct. Without photosynthesis, there wouldn't be enough oxygen for animals to breathe.

3. Hydrogen bonds in water: These are responsible for many of water's unique properties, such as its ability to expand when it freezes and its high heat capacity. These properties help support life on Earth.

4. Oxygen: Oxygen is essential for most forms of life because it's used in cellular respiration, a process that produces energy.

5. Ice: Ice, which is just frozen water, helps regulate the planet's temperature and provides a habitat for many species.

So, while all of these factors contribute to life on Earth, water is the most fundamental.