Question 30 (1 point)
choose the word that best completes the following sentence.
clusters of galaxies and individual galaxies formed from pieces of enormous
- and helium clouds.

a) dust
b) hydrogen
c) stars
d) matter

For some reason, I'm torn between dust and Hydrogen, but I'm pretty sure it's Hydrogen.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this