Explanation: The shape of a river's stream bed affects the speed and eroding power of a river by influencing the amount of friction between the water flowing through the river and the stream bed below. Friction is the force that opposes the motion of one surface as it moves across another surface. In a river, there is friction between the flowing water and the stream bed beneath it. Where a river is deep, less water comes into contact with the stream bed, so there is less friction. The reduced friction means there is less opposition to the water's motion, so the river flows at a greater speed and has more kinetic energy for erosion. On the other hand, where a river is shallow, more water comes into contact with the stream bed, so there is more friction. The increased friction means there is more opposition to the water's motion, so the river flows at a lesser speed and has less kinetic energy for erosion. Also, the roughness of a stream bed covered with boulders and other obstacles causes the water to flow through the river in a turbulent fashion. This could cause the river to move slower in some cases or erode more in other cases.
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Answer:
A detergent molecule consists of a polar ionic head and a non polar hydrocarbon tail. Polarity of a molecule is due to difference in electronegativities of constituting atoms. For example O-H bond is polar because oxygen is very electronegative compared to hydrogen (3.44 vs 2.2) so O acquires a partial negative charge and H acquires a partial positive change making the bond polar.
Detergent tail molecule is non polar because it is made of hydrocarbons i.e. hydrogen and carbon atoms. Carbon atoms are bonded to each other and to hydrogen atoms. Electronegativities of carbon and hydrogen are almost same ( 2.55 and 2.2 respectively ). The difference is not much to induce polarity in C-H bond also hydrocarbon tails have maximum C-C bonds which have no polarity because both the atoms are same.Hence, the tail of detergent molecule is non polar.
Plants take in Carbon (Co2) in order to produce Oxygen for us to breathe and live.
This is why fertilizers do not need or use Carbon.
I hope this helps you a lot.
Answer:
Part A: Core of the Sun
Part B: The radioactive zone
Part C: The convective zone
Part D: The photosphere
Part E: Corona <--- :D
Explanation:
If I am wrong, I am sorry because I am only a middle schooler and I searched it up and only read some articles. I hope this helps!
