WILL MARK BRAINLIEST Sancia's class is studying rocks and minerals. Sancia has found this rock on the school playground. "I think this rock is made of mostly one mineral," said Sancia's teacher. She gave Sancia the mineral chart you see here. What evidence would be of little use to Sancia? What characteristic would be most useful to her when classifying the mineral?


A) least useful - color; most useful - streak
B) least useful - hardness; most useful - color
C) least useful -streak; most useful - hardness
D) least useful - hardness; most useful - cleavage

An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.