Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold foil. some of these alpha particles were deflected at angles as they passed through the foil.

what conclusion did rutherford and his colleagues draw from their results?
a) the atom must contain some neutral charge spread throughout the atom. he called these particles neutrons.
b) the atom must contain some centrally located negative charge. he called this core of negative charge the nucleus.
c) the atom must contain some centrally located positive charge. he called this core of positive charge the nucleus.
d) thomson's plum pudding model of the atom was correct. the atom contains positive charge spread throughout its structure.

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

for points guys

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.