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Alexus [3.1K]
2 years ago
7

The atmosphere is mostly made up of the gases __ and __

Biology
2 answers:
DiKsa [7]2 years ago
7 0

Answer:

Nitrogen and oxygen

Explanation:

More nitrogen than oxygen.

earnstyle [38]2 years ago
4 0

Answer:

I believe nitrogen. hope that helps

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A student is going to use the above water dropper in an experiment. What is the amount of liquid in the water dropper?
katrin2010 [14]

Answer:

2ml

Explanation:

you can see that the water line is directly on the 2 so its 2 ml at the top it does show the that the water dropper tool is in ml unit

5 0
3 years ago
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Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of
Len [333]

Answer:

A. It decreases the activation energy needed to start the reaction

Explanation:

Organic catalyst which speed up the rate of organic chemical reaction is living cells are called enzymes.They have specific reaction site called active sites.This must be in prefect shape with the substrate for the organic chemical reaction to take place

When this occurs the minimum amount of  energy of  reaction to  activate or stimulate  the the atoms and molecules of the substrate to undergo chemical reaction is  lowered.This energy of reaction is celled activation energy.

Catalase thought its active sites lowers the activation energy so that the molecules of H2O2 could break down to C02 and H2 faster,thereby reducing the time for theses product to form.The is the general roles of enzyme.To increase the rate of chemical reaction,by reducing the activation  energy.

8 0
3 years ago
Continental drift states that continents moved ____ to their current location
Ahat [919]
<h3>Slowly</h3>

Wegener proposed the hypothesis of continental drift, which suggested that continents are in constant motion on the surface of Earth. Over time Pangaea began breaking apart, and the continents slowly moved to their present positions.

<h3>What is Continental Drift ?</h3>

The theory of continental drift is most associated with the scientist Alfred Wegener.

  • Wegener's continental drift theory introduced the idea of moving continents to geoscience. He proposed that Earth (opens in new tab) must have once been a single supercontinent before breaking up to form several different continents.

  • The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.

Learn more about Continental Drift here:

brainly.com/question/7350119

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4 0
1 year ago
Body functions that contribute to the BMR include:________.
VashaNatasha [74]
E. Digesting.....food because it helps
6 0
3 years ago
What are the primary atoms that make up the scents that we smell? 2. is scent subjective? why or why not? 3. what are the two di
aleksandrvk [35]

Answer: seen below

Explanation:

1) The olfactory receptor can recognize and respond to different ordor, For humans, most odorant molecules are made up of combinations of 5 kinds of atoms: these are, carbon, hydrogen, oxygen, nitrogen, and sulfur.

2) yes, scent is subjective. This is because there is likely variation in people's sensitivity to odor or personal appreciation of different odors. Not everyone smells the same thing.

3) The two proposed theories for the mechanics of scent recognition are; vibration theory and shape theory which is also called the lock and key model. The main problem with one of Turin theories is that we can't currently predict odor character from vibration any better than we can from shape. That is we are still terrible at predicting ordor character from molecular structure.

4) Science has contributed to the creation of scented products and perfumes by having chemical Mixtures Tested in labs and addition of substances for smell.

5) Scents or fragrances are used in cosmetology as perfumes, lotions, shampoos, face washes, body cream, conditioners, etc. Cosmetologist need to be aware of scents and fragrances because if a perfume had a scent that did not smell right then no one would want to purchase their product.

3 0
3 years ago
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