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.
D
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Which of the following air masses has short days and low sun angles during winter?
A) continental polar B) maritime tropical C) continental tropical D) radiation inversion
What process adds water until the water table rises and envelops the deep roots of plants, resulting in a loss of productivity and ultimately killing them?
A. salinization B. desertification C. soil erosion D. overgrazing E. waterlogging
Which of the following organisms is in the same kingdom as humans (kingdom: animalia)?
a) Giant kelp b) Blue-green algae c) Eel grass d) Sea urchin e) Bacteria
Explain why some rock layers can be missing from the sequence in some outcrops
What will be an ideal response?