List events A-F showing in figure 13-1 in order that they occured, beginning with the old event

Explanation:

Disconformities and nonconformities are both types of unconformities. Nonconformities occur where layers of sedimentary rock are deposited over eroded igneous or metamorphic rock. Disconformities occur when there is a gap due to erosion or non-deposition between layers of sedimentary rock.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: