There are 20 mice in a 5 m2 field ecosystem. The population density of mice is . 20 per m 2
5 per m 2
25 per m 2
4 per m 2

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

Determine the length of the object shown. 97.8 mm 97.80 mm 97 mm 98 mm

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a. sound waves can travel though solids.    b. the waves travel from room to room via air.    c. there must be some air in the wall so the sound can travel through it.    d. sound waves change to electromagnetic waves and then back again.