The formation of magma within earth is not caused by

loss of volatiles to the atmosphere

Explanation:

volatiles are the group of chemical elements and chemical compounds with low boiling points that are associated with a planet's or moon's crust or atmosphere. Examples include nitrogen, water, carbon dioxide, ammonia, hydrogen, etc.

Volatiles were accreted throughout the Earth’s formation, but Earth’s early accretion history was volatile poor.

answer; creep;

answer; round wood logs, building materials like (plywood),also pulp and paper products;