The Correct answer to this question for Penn Foster Students is: 81.94m
Answer and explanation;
-Ecological succession is the process by which an environment changes structure, in terms of resident species, over a period of time. Ecological succession falls under two categories, primary and secondary, which determine the types of factors that are involved.
-The factors involved in ecological succession are either biotic or abiotic. Biotic factors are those that involve life and its aspects. Abiotic factors are those that involve aspects external to life but are still indirectly involved. An example of an abiotic factor would be climate.
The soil, an abiotic factor, of an environment affects ecological primary succession greatly. Different species of plants require different soil conditions.
Climate, an abiotic factor highly involved in both primary and secondary succession, plays a significant role in determining the direction of succession in an environment.
B. Mercury, Jupiter, Saturn, and Mars.
C. Mercury, Venus, Jupiter, and Mars.
D. Mercury, Venus, Earth, and Mars
Answer:
-5 m/s
Explanation:
vo = 10 m/s
a = -1 m/s²
t = 15 s
v = vo + at
= 10 + (-1)(15)
= -5 m/s
(actually the train has come to a stop at t = 10s)