Integumentary system I believe
Answer:
9.0m and 0.009m
Explanation:
Since the hearing capacity range as from low to high. That is from 20Hz to 20000Hz.
F1 = 20Hz and F2 = 20000Hz
Also velocity is given as 360m/s
For the low capacity hearing
V = λf1
360m/s = λ × 20Hz
λ = 360m/s ÷ 20Hz
λ = 18m
Where λ = 2L
18m = 2L
L = 9m
As lo for the high frequency = 20000Hz
V = λf2
360m/s = λ × 20000
λ = 360m/s ÷ 20000
λ = 0.018m
λ = 2L
0.018 = 2L
L = 0.018÷2
L = 0.009m
Answer:
7 billion
Explanation:
global human population is closest to 7 billion Relatively poor countries in Sub-Saharan Africa and South Asia will account for almost all global population growth during the next two decades
The Earth's aveerage temperature will increase.
The strong rock is sedimentary and it doesn't have fossils and has extrusive foliation. The brittle rock is ingenous and has fossils and intrusive foliation. The hard black rock is metamorphic without fossils with extrusive foliation.