(Question)
Veins generally carry deoxygenated blood, and veins carry blood to our heart. Given these facts, deoxygenated blood is carried where among the following options: - to our heart - during the day - animal transport - our planet - critical organs - mouth of rivers - humans - organs
(Answer)
to our heart

(Question)
Light enters the eye through an opening called the pupil, and if there is a strong light, the pupil gets smaller. Given these facts, what do pupils get when reacting to strong stimuli among the following options: - smaller - Energy. - grow - Energy - It expands - expelled - properties - nerves
(Answer)
smaller

(Question)
Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, and an acid is defined as a compound which can donate a proton . Given these facts, what comes from burning coal and oil dissolving in water in the atmosphere among the following options: - Plant growth is reduced - A transportation fuel - Generating heat - harmful substances - DNA damage and mutations - A compound that donates proton - ozone depletion - Mutagenic chemicals
(Answer)
A compound that donates proton