Water is a compound because it is formed from atoms and two elements
Answer:
I didn't understand the question..but here is the definition
Explanation:
Definition of Stelar System:
According to the older botanists, the vascular bundle is the fundamental unit in the vascular system of pteridophytes and higher plants. ... Thus the stele is defined as a central vascular cylinder, with or without pith and delimited the cortex by endodermis.
Answer:
Chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction. All chemical reactions produce different results, which means that not all chemical reactions share the same characteristics
Explanation:
The characteristics of a chemical reaction are :
Evolution of gas
Formation of a precipitate
Change in color
Change in temperature
Change in state
Formation of new substances
The answer is <span>Gap Junction
Gap junction is a small gap between the cells that used to transmit signall to the cells. This gap will allow the heart muscle to be activated in unison. Coordinated contractions are important for heart muscle because it creates the force that needed to pump the blood.</span>
In this passage they talking about water problem and flood, flooding means the covering or submerging of normally dry land with a large amount of water. it means that water is useful but it also dangerous.