Answer:
- contains oxygen
- provides warmth
- blocks harmful energy from the Sun
Explanation:
The atmosphere is crucial when it comes to providing living conditions on Earth. The gases in the atmosphere manage to balance the things just about right, so that the life can thrive. The atmosphere has oxygen, the gas that is used by pretty much every organism to be able to function. With its greenhouse gases, the atmosphere manages to trap the heat inside, thus providing warmth to the Earth. The numerous layers of the atmosphere manage to block in big portion the harmful energy from the Sun, with a special accent on the ozone layer, a layer that manages to stop most of the UV radiation.
Answer:
Mass of oxygen required = 19.5 moles × 16 g/mol = 312 g.
Explanation:
Answer:
Explanation:
These are multiples and submultiples of the unit liters.
pL, mL, dL and kL
pL<mL< dL< kL
Units can be expressed in form of multiples and submultiples form using the following prefixes:
Note: submultiples are lower than multiples:
submultiples 10⁻¹ deci(d)
10⁻³ milli(m)
10⁻¹² pico(p)
multiples 10 deca(da)
10³ kilo(k)
Answer:
C
Explanation:
Atoms undergoing alpha decay lose 2 protons and two neutrons to become a different atom. Those two protons and neutrons are represented by an α (the symbol for alpha) particle which also represents a helium nucleus (2 neutrons and 2 protons).
False, his periodic table was the first one, nobody knew about more elements in that time rather than the ones in the periodic table
