The Earth's crust is made of rock, which is composed of minerals. Minerals are solid, naturally occurring non-living materials that have a structure of crystals. There are hundreds of different kinds of minerals, but about 90% of the ones on Earth are silicates. Silicate minerals include oxygen and silicon along with some other combination of elements like iron, aluminum or potassium. Since each mineral is made of different elements, each has a unique set of properties. For example, diamonds are very hard, iron is strong and halite (salt) tastes good on food. Which of the following is not true about minerals?
A They always include oxygen and silicon.
B They are naturally occurring materials.
C They each have unique properties.
D They have a crystalline structure.

I'm pretty sure it's A because it said 90% instead of all

Explanation:

A

Explanation:

the passage said about 90percent not all the mineral springs

we

the correct answer is   d. a picture depicting people applauding a country's leader.

< > answer < >

multiple settings

< > reasoning \ evidence < >

novels have multiple settings. a setting is a place or surrounding when a main event or event takes place. not everything happens in just one scene or setting. yes, there can be one *main* setting, but there is definitely not just one. b is incorrect. novels do not have limited characters. there are many characters in a novel, depending on how many the writer wishes to add in. c is incorrect. there is not just a single theme. there are many themes. another word for "theme" is the subject. there can be many subjects and topics. once again, there are many, depending on however many the author wishes to add or include. d is incorrect. yes, novels *can* have no solutions, based on what the author would like. but typically, novels have a solution. the solution might be in "book 5", but there is normally still a solution.

< > eclipsed < >