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Tamiku [17]
3 years ago
12

Why were levels of CO2 much higher in the atmosphere millions of years ago?

Biology
1 answer:
kykrilka [37]3 years ago
5 0

Answer: Carbon dioxide levels today are higher than at any point in at least the past 800,000 years. Global atmospheric carbon dioxide concentrations (CO2) in parts per million (ppm) for the past 800,000 years. ... Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.

Explanation:

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A closed metal container that is filled with hot water gets distorted or compressed when it is kept under the tap water. Why?
tino4ka555 [31]

Answer:

Explanation:

The closed metal container will get distorted or compressed due to a combination of two reasons:

1.<em> contraction of the metal container as a result of a reduction in its temperature.</em>

2. <em>a reduction in the pressure inside the container caused by a sudden drop in the temperature of the water inside it. </em>

The tap water causes a reduction in the temperature of both the container and the water inside it. An increase in temperature causes metal to expand and a reduction in temperature causes it to contract. Also, water takes less space than steam. Therefore, a reduction in the temperature of the hot water causes a reduction in the pressure inside the container relative to the outside. This causes the metal container to be compressed.

8 0
3 years ago
In E. coli protein synthesis, the initiation complex contains
Ksenya-84 [330]

Answer:

The correct answer will be option-C.

Explanation:

The process of translation in prokaryotes is complex process and proceeds in three steps: initiation, elongation and termination.

1. Ribosomal subunits: 50S (5S and 23S subunit) and 30S (16S and proteins).

2. Initiation factors: IF1, IF-2 and IF-3 which help in the formation of assembly.

3 GTP: guanosine triphosphate as a source of energy.

4. Charged tRNA: with N-formylmethionine is the first amino acid.

5. mRNA: the RNA to be translated.

Since the option contains both 50S and 16S components of ribosome thus, Option-C is the correct answer.

7 0
3 years ago
Consider the diagram that depicts the lysogenic and lytic cycles.
Kisachek [45]

The diagram is not given in the question, so the diagram is attached below: Answer:

step E

Explanation:

The viruses are assembled in Step E.

The assembly of the virus occurs in nucleus or cytoplasm of host cell. In step D, viral components of virus are synthesized and in the next step E, The viral component assembled into mature virus.

Hence, the correct option is "Step E".

6 0
3 years ago
The world is continuing to expand economically, and consumers are demanding for products. Which of the following is the most dir
dolphi86 [110]

Answer: Tree Good

Explanation: No more Tre ekuiL no mor

are

5 0
3 years ago
Where would you find a strong acid on the pH scale?<br> A. 1<br> B. 5<br> C. 3 <br> D. 13
aivan3 [116]

Answer:

A. 1

Explanation:

pH is a measure of how acidic/basic a substance is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.

note: the closer you are to the neutral the weaker it gets.

6 0
3 years ago
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