Why is it important for a scientist studying greenhouse effect to know about mater,forces and energy

Answers

Answer 1

Answer: In the 19th century, scientists realized that gases in the atmosphere cause a "greenhouse effect" which affects the planet's temperature. These scientists were interested chiefly in the possibility that a lower level of carbon dioxide gas might explain the ice ages of the distant past. At the turn of the century, Svante Arrhenius calculated that emissions from human industry might someday bring a global warming. Other scientists dismissed his idea as faulty. In 1938, G.S. Callendar argued that the level of carbon dioxide was climbing and raising global temperature, but most scientists found his arguments implausible. It was almost by chance that a few researchers in the 1950s discovered that global warming truly was possible. In the early 1960s, C.D. Keeling measured the level of carbon dioxide in the atmosphere: it was rising fast. Researchers began to take an interest, struggling to understand how the level of carbon dioxide had changed in the past, and how the level was influenced by chemical and biological forces. They found that the gas plays a crucial role in climate change, so that the rising level could gravely affect our future. (This essay covers only developments relating directly to carbon dioxide, with a separate essay for Other Greenhouse Gases. Theories are discussed in the essay on Simple Models of Climate.)

Related Questions

Which numbers are used? Consider the balanced chemical equation that follows. You are asked to determine how many moles of water you can produce from 4.0 mol of hydrogen and excess oxygen. (Excess oxygen means that so much oxygen is available it will not run out.) Which of the numbers that appear in the balanced chemical equation below are used to perform this calculation?
BaCl2 (aq) and K2CrO4 (aq) combine in a double replacement reaction. Select the reaction below that correctly represents the products of the reaction. BaCl2 (aq) + K2CrO4 (aq) Ba (s) + 2KCl (aq) + 2Cr (s) + 2O2 (g) BaCl2 (aq) + K2CrO4 (aq) BaCrO4 (s) + 2KCl (aq) BaCl 2 (aq) + K2CrO4 (aq) BaCrO3 (s) + 2KCl (aq) + O (g) BaCl2 (aq) + K2CrO4 (aq) BaCrO4 (s) + KCl (aq)
Determine the freezing point of an aqueous solution containing 10.50 g of magnesium bromide in 200.0 g of water.
Which compound has the strongest hydrogen bonding between its molecules? 1. HBr 2. HF 3. HCl 4. HI
a gas has a volume of 590 mL at a temperature of 590 mL at a temperature of -55.0 degrees Celsius. What volume will the gas occupy at 30.0 degrees Celsius?

Which of the following is true for compounds?They can be separated into their component elements through physical means.
They can be created by chemical reactions.
They can consist of no more than two types of elements.
They all have the same properties regardless of their elemental composition.

Answers

They can be created by chemical reactions.

Compounds have varying properties, depending on the compounds they are made from, and are created by chemical reactions.

Answer: The correct option is that the compounds are created by chemical reactions.

Explanation:

Option 1: Elements combine chemically in a specific ratio to form compounds. They can't be separated by physical methods like filtration. For example, $H_2O$ is made up 2 H-atoms and 1 O-atom. When we filter water through normal filtration, we do not obtain H-atom and O-atom separately, but we get combined form of hydrogen and oxygen atom that is $H_2O$ .

Option 2: Compounds are formed when two or more elements combine chemically.

$2H_2(g)+O_2(g)\rightarrow 2H_2O(l)$

Option 3: Compounds can have more than two types of elements. For example, In $CaCO_3$ , 3 elements are present - Calcium(Ca), Carbon(C), Oxygen(O).

Option 4: Compounds formed have different properties from one another. There can be difference in physical properties as well as chemical properties. For example, $H_2O$ (water) and $CaCO_3$ (calcium carbonate) are two compounds. Water is present in liquid state and calcium carbonate is present in solid state. Hence, it showed that all the compounds cannot have same properties.

Criteria for evaluating alternative solutions includes all of the following except :a. Appropriateness
b. Prediction
c. Adequacy
d. Efficiency

Answers

Criteria for evaluating alternative solutions includesall of the following except :

a. Appropriateness
b. Prediction
c. Adequacy
d. Efficiency

Criteria for evaluating alternative solutions includesall of the following except prediction. The answer is letter B.

Mohs Scale of Mineral Hardness Hardness Mineral Absolute Hardness 1 Talc 1 2 Gypsum 2 3 Calcite 9 4 Fluorite 21 5 Apatite 48 7 Quartz 100 8 Topaz 200 According to the Moh's Scale of Mineral Hardness, the sample mineral that will scratch gypsum but not apatite is MOST LIKELY A) calcite. B) quartz. C) talc. D) topaz.

Answers

Answer: A) calcite

Explanation:

Hardness can be defined as the ability of the mineral to resist the scratch. It is the property to judge the hardness of the mineral. Mineralogist study this property of hardness using Mohs hardness scale.

Talc is the least hard substance after that gypsum, then calcite, fluorite, and then apatite.

The gypsum can be scratched by the calcite but the calcite cannot scratch apatite as it is softer than apatite.

In a pressure cooker, a lid is screwed tightly onto a pot so that the air pressure in the pot is increased. What effect, if any, will this have on the boiling point of water in the pot?The boiling point will be raised.
The boiling point will be lowered.
The boiling point will be unaffected.
None of the above.

Answers

A liquid boils when it's vapor pressure will be equal to the atmospheric pressure. With the lid on, increases the pressure inside the pot. As an effect, it would take a higher temperature to reach the boiling temperature.

Answer: The boiling point will be raised.

If a lid is screwed on tightly in a pressure cooker, the air pressure is increased. This will make the boiling point of the water to be raised.

What happens to population growth in a logistic growth pattern as it reaches carrying capacity?a. remains constant
b. speeds up
c. slows down

Answers

i believe the answer would be C. slows down, hope this helps:)

Which quantities must be conserved in all chemical reactions? 1) mass, charge, density
2)mass, charge, energy
3) charge, volume, density
4) charge, volume, energy

Answers

2) mass, charge, energy

in a balanced reaction, all of the following are conserved

Answer: It's B this will help u

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Is americium a solid, liquid or gas

Base your answer on the information below. A 1.0-gram strip of zinc is reacted with hydrochloric acid in a test tube. The unbalanced equation below represents the reaction. ____ Zn(s) + ____HCl(aq) ____H2(g) + ____ ZnCl2(aq) Balance the equation for the reaction of zinc and hydrochloric acid, using the smallest whole-number coefficients.