Which of the following is true of all combustion reactions?
A) They are endothermic.
B) They produce carbon dioxide.
C) both a and b
D) neither a nor b
D
Environmental & Atmospheric Sciences
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Fertilizers do not alter soil characteristics.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
Use a diagram to help explain the relationships among ecosystems, communities, and species
What will be an ideal response?
Environmental & Atmospheric Sciences
A warm front is said to exist when:
A) invading cold air pushes underneath warmer air. B) warm air pushes underneath cold air. C) moving cold air overrides warmer air. D) advancing warm air overrides retreating cold air.
Environmental & Atmospheric Sciences
All crystals of a mineral will have the same:
a. chemical composition (or chemical compositions that vary between fixed limits) b. angle between corresponding crystal faces c. internal structure d. all of the above
Environmental & Atmospheric Sciences