(Q).
If gravitational force accelerates objects, then what accelerates an object? Answer choices: - transportation technology - chemical messengers - kinetic energy - electromagnetic energy - gravitational force - flow of electrons - a hydraulic system - heat energy
(A).
gravitational force

(Q).
If birds typically travel long distances, then what typically travels long distances? Answer choices: - camels - humans - jets - trains - ants - dogs - snails - birds
(A).
birds

(Q).
If deepening rivers cause the loss of topsoil, then deepening rivers cause? Answer choices: - relocation - the loss of topsoil - Plant growth is reduced - to move people - Physical weathering - forest is destroyed - Water expanding - water conservation
(A).
the loss of topsoil