(Q).
You are presented with the question "What can cause sinkholes?" and the following answer choices: - Solid bedrock - rivers - mines - Drought - Rain - Evaporation - coal - storms Now knowing that sinkholes are formed by precipitation and rain is also known as precipitation, choose the best answer.
(A).
Rain

(Q).
You are presented with the question "where are gametophytes?" and the following answer choices: - shrub beds - ovaries - ferns - barnacles - fertile - bushes - trees - plants Now knowing that female gametophytes produce eggs inside the ovaries of flowers and angiosperm gametophytes are in the flower, choose the best answer.
(A).
ovaries

(Q).
You are presented with the question "Gases from burning coal and and oil dissolving in the atmosphere can cause what?" and the following answer choices: - polluted rain - disease - humidity - thunderstorms - snow - contamination - Temperature - harmful substances Now knowing that gases from burning coal and oil dissolving in water in the atmosphere causes acid rain and acid rain comes from polluted clouds, choose the best answer.
(A).
polluted rain