HELP PLEASE!! What do scientists think happens in the core to produce the Earth's magnetic field? 1. The outer liquid core becomes magnetized by the rapid spin of the solid inner core.
2. The liquid iron and nickel outer core's motion in relation to the metallic solid inner core becomes a geodynamo.
3. The solid inner core of iron and nickel act as a large magnet.
4. The liquid iron and nickel inner core's motion in relation to the mantle becomes a geodynamo producing a magnetic field.

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?