It's magnetic field! Hope this helps :)
If their is a change in increase in temperature and it gets way too high, it will dry out the soil and the vegetation pattern will be lost resulting in dry crops which are unedible.. moisture is always good for vegetation!! (:
<span>A. tall dense forests of broadleaf trees
B. coniferous forests, temperate grasslands, and agriculture
C. forests, alpine tundra, mosses, lichens, shrubs, permafrost
D. deciduous forests, coniferous trees</span>
Answer:
Weathering erodes the rock by wind, water, and any other natural occurrence. Erosion is the same thing as weathering.
Explanation:
The question was too vague hopefully that helps.
The principle of superposition is that in a horizontally bedded sequence, the lower strata are the oldest and the top strata are the youngest. The sedimentary rocks were originally laid down horizontally so preserve features that are a consequence of this horizontality so if the strata have been uplifted and perhaps tilted say to vertical, using such clues as original graded bedding ie more coarse grained seds at the bottom of beds and progressively finer grained seds above them within a stratum, this is a clue as to what is up in a vertical or overturned sequence. Also, the fossil content will tell which strata are younger and which older.