The ability to move your right hand is controlled by the

Left Hemisphere of the cerebrum

The brain (cerebrum) is composed of the left and right cerebral hemispheres which are separated by a fissure and joined by a large bundle of nerve fibers known as corpus callosum. The left hemisphere of the cerebrum is the logical side of the brain and it is responsible for the control of the right side of the body while the left side of the body is controlled by the right cerebral hemisphere.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds