50 POINTS IF ANSWER IS RIGHT!! Q.1. The unit and the video both mention the International Space Station. Compare and contrast the information that we obtain about the ISS as it pertains to both space and Earth from the video and the unit.
Q.2. Consider some of the widespread global issues that we face here on Earth and briefly describe them. Then, choose one of the space research technologies discussed in the unit OR that you find online through some brief research (but may not be one discussed in the video) and explore how it could help us research, learn more about, or address this particular issue (similar to how Wood did in the video) in one to three paragraphs.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.