(Q).
If erosion can cause seismic vibrations which are triggering mechanisms, then what can cause seismic vibrations, which are triggering mechanisms? Answer choices: - wind - erosion - vehicles - flooding - waves - rivers - energy - mines
(A).
erosion

(Q).
If black holes are formed by stars that have mass larger than 25 solar masses, then stars that have mass larger than 25 solar masses can form what? Answer choices: - moons - power stations - black holes - an object - suns - planets - scattered light - heat energy
(A).
black holes

(Q).
If condensing causes water to form, then what does condensing cause? Answer choices: - less water - rainfall - Asphalt to form - Animals to form - evaporation - Heat energy - Solid to form - Water to form
(A).
Water to form