The form of energy that can move from place to place across the universe is (answer) on earth, the main source of this energy is (2nd answer) first blank; a) gravitational potential energy b) radiant energy c)thermal energy d) vibrational energy second blank; a)lightning b) the moon c) the sun d) the wind

The first blank can be filled with option B, that is, radiant energy, and the second blank can be filled with option C, that is, the Sun.

Radiant energy is most generally applied in the fields of solar energy, radiometry, lighting, and heating, however, is also in certain cases used in other branches like telecommunications. In modern uses, comprising the transmission of power from one location to another, radiant energy is also used to signify towards the electromagnetic waves. Thus, it is the form of energy that can move from place to place across the universe.  

A surface heated by the Sun transforms the energy of the light into infrared energy, that is, a form of radiant energy, thus, the main source of radiant energy on Earth is the Sun.  

b and c

Explanation:

I just took the test.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.