PLEASE HELP! BRAINLIEST TO FIRST CORRECT!
1. Which of these is a heavy element in a star?
Lithium
Helium
Hydrogen
Carbon

2. Which is the first stage in the life cycle of a massive star?
White Dwarf
Red Giant
Black Hole
Nebula

3. Why are spectral lines useful in classifying stars?
They show the layers the lay make up a star
They show the composition of a star
They indicate a stars age
They show a stars location

number 1 Helium

number 2 Nebula

number 3 They show the composition of a star

can i get brainiest for at least trying

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.