Cross section (geometry) of Earth at right. Cross-sections are often used in anatomy to illustrate the inner structure of an organ, as shown at left. A cross-section of a tree trunk, as shown at left, reveals growth rings that can be used to find the age of the tree and the temporal properties of its environment. Cross section (geometry) In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross sections. The boundary of a cross section in
Papal Mass only used for the readings and some of the responses, while the next year's Palm Sunday service was for the first time said entirely in Italian. In the earlier papal Mass, only the pope, the deacon, and the subdeacon received Holy Communion. In modern papal Masses many receive, some from the pope himself. It has become common for the pope to celebrate Mass in stadiums or sports arenas abroad, so as to accommodate a larger number of pilgrims. It is also current practice to celebrate some Masses in Saint Peter's Square. However, much more often, papal Masses in Vatican City