What is needed for life to exist?

Answer 1

Initially, the elements Carbon, Hydrogen, Nitrogen and Oxygen.

These four elements combine in different ways to make four molecules, viz. Water(H2O), Carbon Dioxide (CO2) , Methane(CH4) and Ammonia (NH3) .

These four molecules are the 'building blocks' of life, they can combine in various ways to make DNA (de-oxyribonucleic acid). that gives life its various characteristics. .

NB Other elements are also needed viz. Phosphorus, Sulphur to naame but two.

Answer 2

Clean air, water, animals, trees, certain bugs like bees. And the population must be maintained throughout the years which isn't happening. We also have to watch the amount of gasses that are being emitted through cars, trains, or any machine that emits smoke and gasses.

the things that mostly sustain life on earth is Clean air, water, animals, trees, certain bugs like bees. And the population must be maintained throughout the years which isn't happening. We also have to watch the amount of gasses that are being emitted through cars, trains, or any machine that emits smoke and gasses.

Answer 3

Life requires a suitable environment with liquid water, a source of energy for metabolism (such as sunlight or chemicals), organic molecules for building biomass, and a genetic system for transmitting hereditary information. These components are essential for the basic processes of life, such as growth, reproduction, and response to stimuli.

Answer 4

Water, Oxygen, and food are the basic needs of living things.

Answer 5

all living things in order to maintain life need are muscle, determination, heart

Answer 6

Love