Answer:
Infectious diseases are commonly transmitted through direct person-to-person contact.
The main four pathogens are virus, bacteria, protists and fungi.
Bacteria, fungi and protists can reproduce wherever the conditions are warm, with plenty of moisture, nutrients, and space. Viruses can only reproduce by invading living cells.
Metals that do not react with acid would be copper, platinum and mercury
Answer:
A
Explanation:
The earth's rotation makes stars appear to move during the night.
Answer:
The balance of chemical equation is given below.
3Ca + N2------ Ca3N2
Answer:
Coin in a bag
Explanation:
Hello,
In this case, based on the molecular arrangement of gases, liquids and solids, we notice that both gases and liquids must take the shape of the container wherein they are as their molecules are not strongly attracted unlike solids, which have stronger intramolecular forces allowing them to be held together. For that reason, both helium and soda take the shape and the volume of the balloon and the bottle respectively whereas the coin in the bag does not.
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