The water cycle, also known as hydrological cycle is driven by evaporation, condensation and precipitation. Evaporation of liquid water present in water bodies under the influence of solar radiation converts the water from liquid into gaseous state.
The water vapor rises up in the sky to form clouds. Condensation of water vapor converts the water back into its liquid state and leads to precipitation. The process of transpiration also imparts water vapor to the atmosphere.
The correct answer is their blood lacks A or B antibodies.
People with type AB blood have A and B antigenes on the surface of red blood cells (RBCs). Antigen AB has no antibodies, thus, transfusion can be considered safe ( the serum of the recipient does not contain antibodies for the blood cell antigens of the donor).
