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7th Grade Science
Question:
For each of the following biomes, describe the biotic and abiotic feature that are unique to this biome.
a. tundra
b. desert
c rainforest
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How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.