Answer:
When magma cools underground, it cools very slowly and when lava cools above ground, it cools quickly. When magma and lava cool, mineral crystals start to form in the molten rock. Plutonic rocks, which cool slowly underground, have large crystals because the crystals had enough time to grow to a large size.
Explanation:
It basicly startes to molden the rock, and more.
Answer:
Animal ; prokaryote ; plant ; virus
Explanation:
Animal: An animal cell possesses cell membrane, ribosomes, lysosomes and nuclear membrane.
Prokaryote: In a prokaryotic cell, cell wall is present such as bacteria, ribosomes are present but nuclear membrane is absent
Plant: A plant cell possesses cell wall, ribosomes, nucleus and a large vacuole.
Virus: Viruses reproduces inside a cell because they do not have their own energy producing system, nucleus is absent but nucleic acid ( DNA or RNA) is present
Hello!
A polar molecule is where one of the atoms in a molecule has a slight positive charge, and another has a slight negative charge, due to the unequal sharing of electrons.
Water is one of these molecules - the electrons spend more time around the oxygen atom in the center, and less around the hydrogens, so the hydrogen atoms have a slight positive charge, and the oxygen a slight negative.
Therefore, your answer is B, water has a slight negative and a slight positive charge at opposite poles.
Hope this helps!
Answer: B
Explanation: Hope this helps :)
