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Ivanshal [37]
3 years ago
8

The phrase "Most ecosystems are solar powered" refers to the fact that most organisms seek sunlight. solar energy is converted t

o chemical energy by photosynthesis. the sun shines on most ecosystems on earth energy in sunlight is turned into (becomes) sugars.1. True2. False
Chemistry
1 answer:
Savatey [412]3 years ago
5 0

Answer:

The solar energy is converted to chemical energy by the process of photosynthesis - This is the true statement of the given question.

Explanation:

An ecosystem usually refers to the biological community comprising all the types of living species that are continuously interacting with the surrounding environment. Most of these ecosystems are solar-powered, and by this phrase, it means that there occurs the transformation of energy from solar to chemical energy which is taking place due to the process of photosynthesis. Both the terrestrial and the aquatic, are able to carry out this process in the presence of sunlight, water, and CO₂, and in return, it liberates food and oxygen into the ecosystem.

Thus, this statement satisfies the given phrase.

All other options are false as it does not justify the phrase.

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If an object has a Mass of 11g and a volume fo 13mil, what is its density?
Nimfa-mama [501]

Answer:

\boxed {\boxed {\sf B. \ d \approx 0.85 \ g/mL}}

Explanation:

Density is found by dividing the mass by the volume.

d=\frac{m}{v}

The mass of the object is 11 grams and the volume is 13 milliliters.

m= 11 \ g \\v= 13 \ mL

Substitute the values into the formula.

d= \frac{11 \ g}{13 \ mL}

Divide.

d=0.846153846 \ g/mL

Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.

d \approx 0.85 \ g/mL

The density is about <u>0.85 grams per milliliter.</u>

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is it possible for a balloon with an initial pressure of 200.0 kpa to naturally expand to four times its initial volume when the
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You can find the ratio that it can expand with the atmospheric pressure.

200.0/101.3= 1.97 ≈ 2, this means that the balloon could expand twice its initial volume. So, it is not possible for the balloon to expand to 4 since the maximum is 2.
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3 years ago
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Answer:

As more discovers were made, Whittaker proposed classifying organisms into five Kingdoms

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