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3 years ago

QUESTION 4 5

1 answer:

6 0

#4: An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts

#5: It is not surprising that human population density is a leading cause of species invasions. Species are easily moved by human and animal (particularly domestic animal) vectors, and increasing populations residing next to protected areas simply means increasing the odds of species introduction

HOPE THIS HELPS

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If a young girl learned that it would be 0° C, or 32° F, the next

Ad libitum [116K]

Answer:

Cold

Explanation:

Because 0°C And below or 32°F Refers To Cold Weather

7 0

2 years ago

Only_________are involved in forming chemical bonds betwen two atoms

olchik [2.2K]

Only valence electrons are involved in forming chemical bonds betwen two atoms.

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4 0

2 years ago

Question 4

ruslelena [56]

Answer:

Physical change

Explanation:

Brainliest would be appreciated

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2 years ago

THE CONSTANT MOVING OF AND HELP THE TEMPERATURES AROUND THE EARTH REMAIN ABOUT THE SAME AVERAGE

nika2105 [10]

New analysis through 2014 shows that temperature is once again rising at about the same pace as it did over the second half of the 20 th century. PRESS RELEASE. Using the data that were available at the time (through 2012), the last climate report from the Intergovernmental Panel on Climate Change concluded that there had been no statistically significant increase in global surface temperature

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8 0

3 years ago

if the percent yield ofr the following reaction is 75% and 45.0g of NO2 are consumed with ercess water in the reaction. how many

NISA [10]

Answer:

30.8 grams of nitric acid are produced

Explanation:

Let's state the reaction:

3 NO₂ + H₂O → 2 HNO₃ + NO

If water is the excess reagent, then the limiting is the gas.

We convert the mass to moles:

45 g . 1 mol/ 46 g = 0.978 moles

Ratio is 3:2. 3 moles of gas can produce 2 moles of acid

Then, 0.978 moles may produce (0.978 . 2) /3 = 0.652 moles of acid

This is the 100% yield, but in this case, the percent yield is 75%

0.652 moles . 0.75 = 0.489 moles

Let's convert the moles to mass → 0.489 mol . 63g / 1mol = 30.8 g

6 0

3 years ago