Mars is just a fraction the size of the Earth, so it cooled more rapidly. And as it cooled, its molten iron core hardened. As a result, Mars stopped generating its magnetic shield. And, according to one theory, this left its atmosphere to be scoured away by the solar wind.
Answer:
Explanation:
a sugar, a phosphate group, and a nitrogenous base.
Answer:
Ionic bonding When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions . The resulting compound is called an ionic compound .
Explanation:
a - fossil fuels
step by step explanation:
fossil fuels are non-renewable and will run out