Answer:
compound
Explanation:
because now there are one together
dog!
this is because the first energy comes from plants bc they can make their own food— therefore, energy :)
Answer:
Explanation:
It makes sense because Helium and Hydrogen only hold 1 and 2 subsequent protons/neutrons and electrons. When the Big Bang happened the entire universe was so hot that it was impossible for elements to form since it was impossible for electrons to stay bound to the atoms. After a few seconds the universe began to cool enough for electrons to bond to atoms and create different elements. Since Helium and Hydrogen have 1 and 2 electrons subsequently we can assume that they were the first elements to be created. Also they are the most abundant elements in the Universe which backs up this theory.
It would be B.both solar thermal energy and solar electric energy.
98 elements are naturally forming elements.
Answer: 98
