Is a key element found in all carbohydrates, lipids, proteins, and nucleic acids?

Carbon is a key element found in all carbohydrate, lipids, proteins and nucleic acids, which are all organic macromolecules.

The fundamental component of all these macromolecules is carbon. The carbon atom has the unique ability to  form covalent bonds with as many as four different atoms, making it the best or ideal element to form the backbone or  basic structural component  of the macromolecules.

Carbon easily bonds with non - metallic  elements and due to this, it is termed often as the building block of life.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.