Digestion is the process of breaking down food into components the body can absorb, and lack of salvia hinders digestion. Given these facts, lack of which of the following can hinder the break down of food in the body among the following options: - acid rain - water - salt - Weight - chemicals - recycling - sun - saliva
saliva

(Question)
Dew is formed when water vapor condenses over night, and if there is a greater dew point there is more water vapor. Given these facts, more condensing water means more of what among the following options: - CO 2 - rain - hurricanes - contraction - heat - dew - expansion - gas
(Answer)
dew

Ques: Nuclear reactions in stars causes stars to produce light, and and, of course, the Sun is a star. Given these facts, what in the sun causes the sun to produce light among the following options: - energy of moving objects - hydrogen and oxygen - heat energy - water - solar rays - rotation - nuclear reactions - kinetic energy
Ans: nuclear reactions

(Q).
Ants communicate with chemicals called pheromones, and honeypot ants are classified in the genus Myrmecocystus. Given these facts, members of the Myrmecocystus genus communicate via pheromones, which are a type of: among the following options: - sense of smell - chemical receptor - organ - insects - chemical - sound - antennae - Vibrates
(A).
chemical

Ques:The moon revolving around the Earth causes the phases of the moon, and tides are cyclical and closely follow the phases of the moon. Given these facts, what occurs in water as the moon revolves around Earth among the following options: - tides - gravity - liquid - energy - pollution - heat - earthquakes - erosion

Ans:tides

Ques: Fertilization occurs when sperm swim to an egg inside an archegonium, and male gametes are sperm. Given these facts, when fertilization occurs, what swims to an egg inside an archegonium among the following options: - egg shells - male gametes - yolk - h2o - barnacles - Something to move - pollen - flow of electrons
Ans:
male gametes