ionic compounds lose or gain electrons to become stable.
ionic compounds are bonds between metals and nonmetals.
molecular or covalent compounds share one or more electrons to become stable.
molecular or covalent compounds are bonds between nonmetals.
It is based on Relative DENSITY.............
The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Hence option (1) is correct.
<h3>What is Synthesis reaction ?</h3>
Synthesis reactions are reactions that occur when two different atoms or molecules interact to form one molecule or compound.
It is also known as combination reaction
In the given reaction Mg and O combines with each other to form one product i.e, MgO. Hence, The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Thus, option (1) is correct.
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Answer:
The correct option is desertification
Explanation:
Deforestation is the deliberate act of pulling down trees to provide a clear land for space or to make use of the trees for other purposes such as grazing, farming, timber fire wood, building and constructions, urban utilization, access roads, expansion, development of infrastructures, grazing of cattle and mining
The effects of deforestation includes climate change, flooding, increase in the proportion of green house gases in the atmosphere, soil erosion and desertification.
The correct answers are 1 and 4.<span>
1. Both are hormones that control glucose
production and storage in the body.
2. Insulin and glucagon have opposite effects on
blood glucose level.
<span>Both hormones are secreted by the pancreas. Pancreas has 2 cells as alpha and beta. alpha cells
produce glucagon and beta cell produce insulin. Insulin is responsible for decreasing blood glucose
level and glucagon is responsible for increasing blood glucose level. Hence,
both hormones have opposite effects on blood glucose level and they help to
maintain blood glucose level.</span></span>
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