Answer: Small molecular structure
Explanation:
> Bromine and Hydrogen are both non-metals, so they hence cannot form ionic compounds and metals. As such, Ionic Lattice and Metallic structure is wrong.
> gaseous Hydrogen Bromide HBr is produced. Giant covalent substances, such as diamond, have very high melting and boiling points. As such, HBr is a small molecular structure, or a simple covalent substance.
Answer:
1. use a ruler to measure how many heights the ball falls down.
2. use notes to record observations.
Answer:
nitrogen oxides and sulphur oxides
Explanation:
Factors responsible for antropogenic pollution are:
- burning of fossil fuels
- deforestation
- mining
- sewage
- industrial effluent
- pesticides, fertilizers, etc.
The primary air pollutants released from burning of fossil fuels are oxides of nitrogen, sulfur oxides and carbon monoxide.
Out of which the main pollutants that are responsible for acidic precipitation are oxides of nitrogen and sulfur oxides.
Sulfur oxides and Oxides of nitrogen reacts with moisture present in the air to form sulfuric acid and nitric acid respectively.
These acids get mixed with rain and cause acidic precipitation.
Therefore, the correct option is oxides of nitrogen and sulfur oxides.
OD IS THE ANSWER
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