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ch4aika [34]
3 years ago
15

Sooo i suck at science like a lot . even tho i have a 70....can someone help me pls?

Chemistry
1 answer:
AleksAgata [21]3 years ago
7 0

Answer:

it is A

Explanation: the only way to possibly know that is if they are in the same level or if the dinosaur bones were found above the level of trilobites

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The puppies in the photograph above are from the same litter. Their inherited traits, such as fur color, are coded onto molecule
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3 years ago
1. Identify the type of ecosystem service being provided in each of the following
Wittaler [7]

The ecosystem services provided by the each of the given examples are as follows:

  • A cornfield in Kansas provides provisioning services.
  • Bacteria that decompose waste along the Gulf Coast provides regulating services.
  • Ocean currents that keep Pacific Northwest air cool and moist provides regulating services.
  • Flower garden at a national landmark provides cultural services.
  • Lumber from an oak tree provides provisioning services.
  • Animals that eat seeds and then spread the seeds through their waste regulating services.

<h3>Ecosystem services</h3>

Ecosystem services are defined as the benefits derived by man from the surroundings ecosystems.

<h3>Categories of ecosystem services</h3>

The four categories of ecosystem services are:

  • regulating services,
  • provisioning services,
  • cultural services, and
  • supporting services

A cornfield in Kansas provides provisioning services.

Bacteria that decompose waste along the Gulf Coast provides regulating services.

Ocean currents that keep Pacific Northwest air cool and moist provides regulating services.

Flower garden at a national landmark provides cultural services.

Lumber from an oak tree provides provisioning services.

Animals that eat seeds and then spread the seeds through their waste regulating services.

Learn more about ecosystem services at: brainly.com/question/2191258

7 0
2 years ago
What can you tell about element hydrogen
Vikki [24]

Answer:

At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas with the molecular formula H2. Since hydrogen readily forms covalent compounds with most nonmetallic elements, most of the hydrogen on Earth exists in molecular forms such as water

Explanation:

7 0
3 years ago
The vernal or spring equinox signals the beginning of spring. At this times of the year, the sun appears to be directly over Ear
denpristay [2]

Answer:

The vernal equinox occurs on March 20 or March 21 each year and signals the start of spring in the Northern Hemisphere (and fall in the Southern Hemisphere). The Earth tilts at an angle of 23.5 degrees on its axis relative to its plane of orbit around the sun. My source is history.com A, i think

Explanation:

hope this hlps

3 0
3 years ago
at what temperature will a fixed amount of gas with a volume of 175 L at 15 degrees celsius and 760mmHg occupy a volume of 198L
Jlenok [28]

<u>Answer:</u> The temperature when the volume and pressure has changed is 274 K

<u>Explanation:</u>

To calculate the pressure when temperature and volume has changed, we use the equation given by combined gas law. The equation follows:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1,V_1\text{ and }T_1 are the initial pressure, volume and temperature of the gas

P_2,V_2\text{ and }T_2 are the final pressure, volume and temperature of the gas

We are given:

P_1=760mmHg\\V_1=175L\\T_1=15^oC=[15+273]K=288K\\P_2=640mmHg\\V_2=198L\\T_2=?K

Putting values in above equation, we get:

\frac{760mmHg\times 175L}{288K}=\frac{640mmHg\times 198L}{T_2}\\\\T_2=274K

Hence, the temperature when the volume and pressure has changed is 274 K

8 0
3 years ago
Read 2 more answers
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