Question

which best describes the definition of a rock?
naturally occurring, specific combinations of elements that have particular three - dimensional structures
naturally formed mixtures of minerals formed though igneous, sedimentary, or metamorphic processes.
formed via extraterrestrial impacts
produced through strictly non - biological mechanisms
question 2 (3 points)
which of the following are not typical professional activities of geologists?
water supply planning and development
assessment of geological issues in the construction of highways
assessment of risks from slope failures and earthquakes
all of these are typical activities of geologists
working in resource industries including minerals

Explanation:

For Question 1: A rock is defined as a naturally occurring mixture of minerals (or mineral-like substances) formed through the three main rock cycle processes: igneous, sedimentary, or metamorphic. The first option describes minerals, not rocks; the third is too narrow (only some rocks form this way); the fourth is incorrect as some rocks can have biological components (like limestone).
For Question 2: Geologists work in water resource planning, evaluate geological factors for construction projects like highways, assess geohazards such as slope failures and earthquakes, and work in mineral resource industries. All listed activities are typical for geologists.

Answer:

Question 1: naturally formed mixtures of minerals formed though igneous, sedimentary, or metamorphic processes.
Question 2: ALL of these are typical activities of geologists