When the water evaporates from the ocean and becomes water vapor, its energy level increases. The change in energy is positive. Water in the ocean is in liquid state. The molecules of water on getting the energy from the Sun increase their energy of movement and become gas. This change in energy is called the latent heat of vaporisation of water. Hence it can be said that a change in state of matter from liquid to gas causes a net increase in its energy.
A.<span>He is always hungry so he cannot think logically.</span>
Its bases can be joined together in any order like the letters of the alphabet can be strung to form different words.
Answer:
The correct answer is - A. phototropic and gravitropic.
Explanation:
A plant seedling grows usually two-direction shoots or stems towards light and roots towards the soil or in the direction of gravity. The movement of the plant toward a specific stimulus or effect parts is called tropism and different parts move in a different direction.
The movement of the roots of the plant is usually towards the direction of soil or gravity and this is called gravitropic. The shoot or stem grows from the seedling towards the direction of light and it is called phototropic.
Answer: True
Explanation:
Mucociliary streaming is the process of the cleaning mechanism of the respiratory passage. It is one of the protective process that protects the respiratory passage from the effect of the particles of dust and pathogens before they reach up to the delicate lung tissues. This process maintains the pulmonary hygiene.
This takes the advantage of cleaning up the cilia present in the respiratory tract, this process penetrates the mucous layer of the cilia by wave-like motion. The cilia trap the large and small particles. The instrument used for this purpose moves at a speed of 6 to 20mm per minute. This helps in cleaning up of the cilia along with the mucous.
