The length of Ab would be 25. AB = 25
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.
standard deviation is 1.7.
Answer:
Tools to use in space:
•Earth-based Observations
•Airborne and Orbital Telescapes
•Probes and Fly-by Spacecraft
•Orbiters
•Landers
•Rovers
•Sample Return