Drag the tiles to the correct boxes to complete the pairs.
Match the pollution type to its effect.
air pollution
water pollution
light pollution
land pollution
contaminated soil
smog
sky glow
eutrophication

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not

What are two examples of phase changes that skip a phase during transition?