Im positive that the answer is b
True
Explanation:
It is correct to say that the salinity of the oceans has been relatively constant throughout geologic time because salt is removed at the same rate it has been added.
Salinity is the amount of dissolved salt found in the ocean. It is the degree of saltiness of the ocean.
- The rate at which salt has been added into the ocean over the years through geologic time has been very constant.
- Most salts in the ocean comes from land.
- Also the rate it has been removed is fairly constant.
- The salinity of ocean has once been used to date the age of the earth.
learn more:
Salinity brainly.com/question/10491444
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Answer:
1 ) Distribution of mass within the ball
2 ) Height of the ramp
Explanation:
Acceleration of a rolling body down an inclined plane is given by the following formula
a = g sinθ / ( 1 + k² / R² )
k is radius of gyration , R is radius of the spherical object ,
when acceleration is more , velocity will also be more .
for objects in which masses are lying in the periphery like in hollow sphere , the value of k²/R² will be high so denominator of the expression will be high so acceleration will be less , hence velocity on reaching the bottom will be less.
On mass of the ball , velocity will not depend .
If height is increased , ball will have acceleration for greater time so velocity will be high.
On radius it will not depend because , radius r and k increases proportionately.
