Answer:Resources such as rocks, soil, water, and air, nonliving things that help to meet our needs. This lesson focuses on students learning about Earth's Resources. They learn that water and air are renewable resources that can be replaced quickly. They learn that soil and rocks are non-renewable and they cannot be replaced quickly.
Explanation:
The answer is D:) Happy I could help. Have a great day!
The Volga is the longest river in Europe. It is also Europe's largest river in terms of discharge and drainage basin. The river flows through central Russia and into the Caspian Sea, and is widely regarded as the national river of Russia.
Answer:
oxbow lake
Explanation:
The meander usually originates in the rivers located in the alluvial plains that have almost no slopes due to the sediments of the earth that commonly settle in the convex areas of the meander. However, in the concave areas, thanks to the operation of forces of centrifugal characteristics, greater erosion is generated and the banks are diminished.
If the natural action of the erosion of water and sediments causes two curvilinear channels to be found between them, the river will react through the area where the currents exert opposition and in this way it will originate a horseshoe lake or oxtail (in English usually called <u>oxbow lake</u>) because the sediments will block the entry of water and the exit of the previous meander, which will cause it to be outside the river path.
Answer: composition in weight percent = 41.25% Cu and 58.75% Zn
Composition in Atom percent = 40.54% Cu and 59.46% Zn
Explanation:
Starting with the composition in weight percent.
Let Mcu= mass of cu and Mzn= mass of zn
%W= weight percent
%Wcu = (Mcu/(Mcu + Mzn)) × 100%
By substituting the values
%Wcu = (33/(33+47)) × 100%
%Wcu = (33/80) × 100%
%Wcu = 41.25%
%Wzn = (Mzn/(Mcu + Mzn)) × 100%
= 47/80 × 100%
%Wzn = 58.75%
Then we can proceed to composition in atom percent
Atomic mass of Cu= Ac = 63.5g/mol
For zn = Az = 65.4g/mol
Atom percent cu = {(%Wcu×Ac)/[(%Wcu×Ac)+(%Wzn×Az)]} × 100%
Substituting the values
= {2619.375/6461.625}×100%
=40.54% Cu
Atom percent zn = {(%Wzn×Az)/[(%Wcu×Ac)+(%Wzn×Az)]} × 100%
={3842.25/6461.625}×100%
=59.46% Zn
Thanks...
