Question

ii). A person cannot sink in dead sea even if he desires. Why?
1. Dead sea has low concentration of salt
2. The buoyant force is less due to high concentration of salt in dead sea
3. The buoyant force is very high due to incredibly high density of dead sea
4. none of the above​

Answer 1

Answer:

dead sea is landlocked and in the lowest valley on earth. All the. minerals of the surrounding countryside get washed into one pool, which in turn gets baked by the sun. This concentrate s the salt so much so that the dead sea becomes times as salty as the ocean which defines why people don't drown in the dead sea

With a salinity of 342 g/kg, or 34.2% (in 2011), it is one of the world's saltiest bodies of water – 9.6 times as salty as the ocean – and has a density of 1.24 kg/litre, which makes swimming similar to floating. This salinity makes for a harsh environment in which plants and animals cannot flourish, hence its name.

The concentration of salt reaches 34%. The extremely high concentration of dissolved mineral salts in the water causes the water to be denser than that of plain fresh water. Since our body weight is lighter (less dense) than the density of the water, our body is more buoyant in the Dead Sea, making it easy to float.

so option 1 is correct