(Q).
Astronauts require preserved food for extended flights, and almost of process food, canned food and preserved food are decreased in their nutritive value. Given these facts, astronauts require what food for extended flights among the following options: - Glucose - canned - squids - complete - sugar - hydration - earthworm - nutrients
(A).
canned

(Q).
Having no natural predators increases population size, and population size is a function of natality and mortality. Given these facts, having what is a cause of mortality among the following options: - natural predators - seasons - Abnormal cell growth - liver cancer - insects - chickenpox - influenza - sunlight
(A).
natural predators

(Q).
Global warming is when worldwide temperature increases, and mass extinction occurs in the ice age and global warming periods. Given these facts, when worldwide temperature increases, mass what occurs among the following options: - extinction - deforestation - carbon - ice age - living - movement - It decreases - Pollution
(A).
extinction