Answer:
Double circulatory system
Explanation:
I do not see any diagram, so forgive me if I am wrong, but if we are talking about the circulatory system of a human, that is a double circulatory system.
Explanation:
It helps in the circulation of blood
Answer:
The mineral formed through evaporation.
Explanation:
Minerals are inorganic substances that occur naturally i.e. not man-made. These minerals are formed in different ways in nature. One of those ways is through EVAPORATION.
Since water dissolves a lot of substances including the particles of these minerals, the mineral components can be found in a dissolved state in water bodies e.g lakes, oceans etc. However, when heat increases and the water molecules evaporate (change to gas), the dissolved minerals in these water bodies crystallize out.
This is what happens when minerals form at the edge of a lake. The water from the lake evaporates leading to the formation of minerals.
Could you please import the image?
Answer:
Polyvinyl acetate PVA PVAc polyethenylethanoate
Explanation: