Chemistry, asked by harshadunes, 9 months ago

Read the text. Then answer the question. Complete the statement. One hundred years ago, the atmospheric concentration of carbon dioxide was about 300 ppm, or about 0.03% of the gas particles in the atmosphere. In 2015, the atmospheric concentration of carbon dioxide was roughly ______ppm.

Answers

Answered by meghatripathi077

Answer:

One hundred years ago, the atmospheric concentration of carbon dioxide was about 300 ppm, or about 0.03% of the gas particles in the atmosphere. In 2015, the atmospheric concentration of carbon dioxide was roughly 400 ppm

Answered by sonu7962

don't

know

Bhai

sorry

Previous Question

Next Question

Similar questions

Science, 4 months ago

the metals that react with cold water???

Business Studies, 4 months ago

Read the following text and answer question No.13-16 on the basis of the same: Payal a house wife, started saving money by cutting her household expenses. Once she had saved Rs 20,000, she started exploring various options as to where she can invest her surplus money. Even though amount was limited, she felt that she had a chance of investing it properly .So she approached a bank named ‘Jhan...

English, 4 months ago

Guess the word from each pair of clues and write it in the box. B 1. (a) the sound that a dog makes (b) the outer covering of a tree 2. (a) modal verb showing ability (b) metal container for food and drink 3. (a) the season after winter and before summer (b) to leap suddenly ...

Math, 9 months ago

express -4x(7/3-9/10) it's urgent...

Math, 9 months ago

What is the difference between |1| and |-1| and What is the difference between |p| and p?

Chemistry, 1 year ago

Is the melting of candle wax an exothermic or endothermic reaction?

Chemistry, 1 year ago

Is the freezing of water an exothermic or an endothermic process?

Social Sciences, 1 year ago

On September 30 NASA has spotted first-ever gamma-ray binary in the neighbour galaxy using which Gamma-ray telescope? Energetic Gamma Ray Experiment Telescope Fermi Gamma-ray Space Telescope ABRIXAS High Energy Transient Explorer VERITAS...