(Q).
Fact 1: Aplant requires sunlight to grow.  Fact 2: Still it takes about eight minutes for sunlight to travel from the sun to the earth.  Given the two facts above, answer the question "A plant requires what to grow?" with the following options:  - Something that is created on Mars  - Something made primarily of oxygen and nitrogen  - Something that is found on Jupiter  - Something that take eight minutes to travel to the Earth  - Basic units of the plant body.  - keeping food fresh for long periods of time  - Something that comes from the Moon  - Something whose growth is discouraged by heavy wet soils
(A).
Something that take eight minutes to travel to the Earth


(Q).
Fact 1: Acavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.  Fact 2: Limestone Limestone Limestone is a grey rock that is made of calcite.  Given the two facts above, answer the question "What is formed when calcite is dissolved?" with the following options:  - graptolites  - patch reefs  - a cavern  - a solute  - body water  - tube  - In sediment  - glass
(A).
a cavern


(Q).
Fact 1: Insulin helps cells take up glucose from the blood.  Fact 2: Insulin made by a person's own pancreas is endogenous insulin.  Given the two facts above, answer the question "what type of compounds produced by a person's pancreas help cells take up compounds" with the following options:  - Energy  - natural  - mineral  - endogenous  - Break down food  - it needs them  - sweat glands  - Energy.
(A).

endogenous