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BigorU [14]
3 years ago
5

Which of the following is not a place where hydrogen can be found on Earth?

Biology
2 answers:
malfutka [58]3 years ago
8 0

Answer:

D. Atmosphere

Got the answer from Penn Foster on the last earth science test. The answer is in Lesson 6: 6.2

olasank [31]3 years ago
4 0

Answer:

c. water

Explanation:

the chemical compound is H20, which stands for hydrogen and 2 oxygen

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Maria wanted to grow a fern in her backyard
WINSTONCH [101]

Answer:

so what's the question asking? does she want to know how much? or the necessary items?

3 0
3 years ago
*Fill in the blank*
Gekata [30.6K]

The noncyclic pathway is a FLOW of electrons from water, to photosystem II, to PHOTOSYSTEM I to NADPH. Energy is released  as  ELECTRONS  move through the first electron transfer chain. This energy pumps HYDROGEN IONS  into the thylakoid compartment, and then they power the formation of ATP as they flow back out. Sunlight provides the energy needed to keep this cycle going.

----------------------------------------------------------------------------------------------------

  1. Luminous energy is trapped by chlorophyll in Photosystem II.
  2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
  3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
  4. <em>When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules. </em>
  5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
  6. <em>When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II. </em>
  7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
  8. The released energy is used to produce ATP molecules.
  9. Hydrogen ions go back from the stroma to the thylakoid compartment.

The final products are oxygen, ATP, and NADPH.  

--------------------------------------------

Related Link: brainly.com/question/13592516?referrer=searchResults

8 0
2 years ago
Sharks and whales look similar, but they’re different types of animals. Whales are mammals, while sharks are fish. Which body pa
DedPeter [7]

Answer:

Gills

Explanation:

Sharks are fishes and thus have gills through which they absorb oxygen from the water.

On the other hand,  Whales being mammals use lungs to breathe. They can’t directly obtain oxygen from water.

7 0
3 years ago
Which data table describes the Sun? Composition mostly frozen nitrogen Mass 258.9 × 1018 kg Composition mostly hydrogen and heli
tigry1 [53]

Answer:

Composition: mostly hydrogen and helium gas

Mass: 1.989 × 10³⁰ kg

Explanation:

Sun is a star at the center of the solar system. It is mostly composed of Hydrogen and Helium gases. Fusion of Hydrogen into Helium in the core powers the sun. Huge amount of heat and light energy is liberated. The mass of the Sun is 1.989 × 10³⁰ kg. Sun is a Population I star.

8 0
3 years ago
Read 2 more answers
2. The diagram shows a sequence of bases in a strand
Gnom [1K]

Answer:

there is no diagram but

ACTTG-TGAAC

TGAAC-ACTTG

so a and b would be complimentary

4 0
3 years ago
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