Please help Composition of the atmosphere
What percentage of Hydrogen is present in the hydrosphere?

State the percentage of oxygen by mass present in the following:
Crust
Hydrosphere
How much nitrogen by percentage is found in the troposphere?

State the percentage of oxygen in the troposphere.

List three gases that make up the early atmosphere.

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.

Why did southern business leaders want to increase the number of slaves

Particles vibrate in a rigid structure and do not move relative to their neighbors.