Questions

Sea appears blue in colour due to the scattering of the rays when they hit water molecules

FALSE. Each hemoglobin molecule can transport four molecules of oxygen.

Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits. Heme the component of hemoglobin responsible for binding oxygen consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules, one molecule binds one molecule of oxygen and can bind up to four oxygen molecules.

The New Deal was a series of programs, public work projects, financial reforms and regulations enacted in the United States 1933-36, in response to the Great Depression organized by Franklin Roosevelt in US.