Figure it out yourself
Water is the necessary device for the survival of life in this earth
Yes, the troposphere is necessary for human survival as it is the lowest layer of the Earth's atmosphere where weather occurs, and where the majority of air we breathe is found. The troposphere helps regulate temperature, weather patterns, and the distribution of gases essential for life on Earth.
The least necessary for life on Earth is non-essential elements or nutrients that are not crucial for survival, such as gold or platinum. These elements are not essential for sustaining life or maintaining the planet's ecosystems.
Oxygen, water, food, and a suitable temperature are necessary for human life on Earth. Additionally, shelter, social interaction, and a safe environment are important for human well-being and survival.
reproduction
Reproduction is a necessary life function that is not needed for individual survival, as an organism can survive without reproducing.
When precipitation falls to Earth, it can infiltrate the ground to replenish groundwater, flow over the surface as runoff into rivers and lakes, or be taken up by plants for growth. It plays a crucial role in the water cycle, sustaining ecosystems and providing the freshwater necessary for life on Earth.
Growth is a characteristic of life that is not strictly necessary for survival. While growth is important for development and reproduction, an organism can survive without significant growth.
as because the gases on the earth helped the survival........and so it could have been said that earth have life
Reproduction is different from other life functions in that it is not necessary for the survival of a single person but is necessary for the survival of a species. Reproduction also generally involves two people or organisms.
The sun!
The troposphere is the lowest layer of Earth's atmosphere where the air is densest and contains the majority of Earth's weather. It is perfect for life on Earth because it contains the oxygen we need to breathe, shields us from harmful radiation from the sun, regulates the planet's temperature through the greenhouse effect, and provides the conditions necessary for precipitation, which supports plant and animal life.