(Q).
Fact 1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow. Fact 2: Acidity is measured with a pH meter or with pH paper strips. Given the two facts above, answer the question "What may become unbalanced if the rate of breathing is too fast or too slow?" with the following options: - meiosis - rain levels - photosynthesis - blood acidity - an organism's body - Veins and arteries. - kinetic energy - swamp vegetation
(A).
blood acidity

(Q).
Fact 1: Humans have collected and grown mushrooms for food for thousands of years. Fact 2: Mushrooms are an example of fungi. Given the two facts above, answer the question "Humans have collected and grown what for food for thousands of years?" with the following options: - plants - fungi - ferns - cheese - fungus - salmon - hamburgers - primates
(A).
fungi

(Q).
Fact 1: Increasing heat causes thermal expansion. Fact 2: Fire makes heat. Given the two facts above, answer the question "what causes thermal expansion?" with the following options: - energy - snowballs - glaciers - wind - Sun - blizzards - coal - fire
(A).
fire