Answer:
1. False
2. True
3.True
Explanation:1. Polar molecules have two regions but the regions are with a partial +tive charge and a partial -tive charge
2. Water is a polar molecule because of the partial +tive and partial -tive charge hence it dissolves polar solute(solute with ions)
3.The more electronegative region bonds with an electrophile to form a weak bond(Hydrogen bond)
Light is the energy source for plants synthesis of simple sugar in plants.
I think the correct answer from the choices listed above is option A. Tolerance range is different for different organisms. <span>Animals can </span>tolerate<span> (or survive within) a certain </span>range<span> of a particular factor, but cannot survive if there is too much or too little of the factor. But this range depends on the organism. Hope this answers the question.</span>