Answer:
The correct model is D.
Note: The first attachment below shows the different models. The second attachment shows the correct structural model of the water molecule.
Explanation:
A water molecule is composed of one atom of oxygen and two atoms of hydrogen.
A water molecule is polar, i.e. it contains positively and negatively opposite ends. The polar nature of the water molecule is due to strong electronegativity of oxygen which results in an uneven sharing of the bonding electrons between oxygen and hydrogen. The oxygen atom attracts the shared electrons more to itself, thereby, it acquires a partial negative charge, while the hydrogen atoms acquire a partial positive charge.
The bond angle between the oxygen and hydrogen atoms is approximately 105°. Therefore, from the first attachment below, the correct model for the water molecule is D.
To see the best way to teach them! Most people learn off there learning style so if you teach a different way it would be hard for them to understand
Ok first of you need to know what a lipid is. A lipid is <span>a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. This includes waxes, steroids etc. Lipids are important for living cells. Together with carbohydrates and proteins, lipids are the main constituents of plant and animal cells. Cholesterol and triglycerides are also considered lipids. </span>
<span>So I would go with C. </span>
<span>Hope I helped. :) </span>
UV light could change the DNA of the skin cells of the organism, possibly causing cancer cells to form.
ANSWER: The sun.
EXPLANATION: Thus, evaporation occurs when liquid is converted to vapour by either wind or the Sun.
The complete water cycle is depicted below.
The process of evaporation/ transpiration (from trees)
Condensation
Precipitation
Seepage (when water sinks into the earth but is typically omitted from the equation for some reason hehe)
