Which statement explains why geologists do not consider sugar to be a mineral?

Quartz (SiO2) is a colorless, nonmetallic mineral with a hardness of 7 and a specific gravity near 2.5. Predict what will happen if an impurity such as iron is incorporated into the quartz as it crystallizes.

Grains gradually become more rounded, as shown in the diagram (moving from left to right), primarily during

Intermediate- and deep-focus earthquakes occur almost exclusively at

Jeanie’s infant turns his head toward a hand placed near his cheek. What does this head-turning behavior exemplify?

A student is close to mastering a new language skill, but the student needs more practice and assistance before performing the skill independently. According to Vygotsky, this gap between what a student can and cannot do without help is referred to as ________.

Minerals are grouped into classes primarily on the basis of

Rocks are classified based on

Proponents of skin-to-skin attachment may advocate for co-sleeping as a way for parents and children to form secure attachments, but co-sleeping can present the risk of SIDS. Which alternative presents an attractive compromise for parents who want to minimize the risk to their child?.

What do adoption studies compare?