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which of the following is not true for atoms?

they combine to form elements and molecules.

they contain negatively charged electrons.

they are the building blocks of matter.

they are made up of elements.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx