Answer: B
Explanation: Direct democracy or pure democracy is a form of democracy in which people decide on policy initiatives directly.
Answer:
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Answer:
Surface expression.
Explanation:
The most effective way to determine if a planet experiences plate tectonics is to look for the telltale signs found on Earth. Several of the features that could be searched for are:
- Mid-ocean ridges
- Rings of volcanism
- Deep linear trenches in the oceans.
A satellite topography scan of the planet would reveal the shapes of the mountain ranges and valleys on the planet. If these tend to be lineal and covering significant parts of the planet, then plate tectonics likely occur.
Answer:
The correct answer out of the four given options is
option a. light elements with atomic numbers less than 5
Explanation:
Big Bang nucleosynthesis, abbreviated as BBN, also known as primordial nucleosynthesis took place after the Big Bang for about 10 s to 20 minutes and resulted in the yield of isotopes of helium-4 (
), helium-3 (
) which accounts for most of the world's helium, other isotopes of hydrogen in small amounts like deuterium (D or
) and lithium isotope, lithium-7(
) in small amount.
Apart from these stable nuclei, it also yielded two radio-active isotopes: tritium(
) and beryllium-7(
) which due to their unstability later decayed into () and ().
All of these isotopes are of light elements with atomic number less than 5.
Answer:
milky way
Explanation:
Earth is located in one of the spiral arms of the Milky Way (called the Orion Arm) which lies about two-thirds of the way out from the center of the Galaxy. Here we are part of the Solar System - a group of eight planets, as well as numerous comets and asteroids and dwarf planets which orbit the Sun
