Nitrogen has atomic number of seven. Which of the following must be true based on the fact? 1. An atom of nitrogen must have seven electrons

2. Them of nitrogen must have three protons and four electrons

3. An atom of nitrogen must have seven protons

4.An atom of nitrogen must have for protons and three electrons

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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