I would say A or B if there’s a text can u post that as well but I’m just going by what it sound like
Answer:
Discovered different planets.
Explanation:
Answer:
Explanation:
The mass of an electron is small compared to the neutron and proton, so it's negligible. It's like adding zero to a number.
Answer:
C and D
Explanation:
Galaxies are composed of stars, dust and dark matter, all held together by gravity. Astronomers aren't certain exactly how galaxies formed. After the Big Bang, space was made up almost entirely of hydrogen and helium.
Answer:
false
A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. ... The cause is called the independent variable; and the effect is called the dependent variable.
