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Lilit [14]
3 years ago
12

Which is true about comets?

Geography
1 answer:
mr_godi [17]3 years ago
6 0

The correct answer is D


Comets are held together by frozen gases


Comets are floating particles of ice and dust held together by frozen gases such as methane,water,ammonia and carbon dioxide. They are basically chunks of ice and dust.

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Which scientific discovery supports the claim that Earth has changed over time?
Vanyuwa [196]

Answer:

Rocks found on different mountains are different ages.

Explanation:

Radiometric dating of rocks and fossil records gives scientists an idea of the timelines of certain organisms. Fossils of long dead species found in different strata of rocks can be used to speculate the age and changes these organisms have experienced overtime.

Fossils found in the uppermost strata are indicative of organisms that died not quite long whereas fossils found in lower layers are indicate of organisms that died a long while ago. These studies also provide insight into the changes that the earth has experienced overtime.

7 0
2 years ago
Read 2 more answers
A problem in mathematics is given to three students A, B and C whose chances of solving it are 1/3, 1/4 and 1/5 respectively. Fi
Tanya [424]

Answer:

i. 3/5

ii. 2/5

Explanation:

Solving the problem by any of the students A, B and C is an independent event as solution by one does not restrict the other one from solving

However, the problem will be solved if even one of them solves the question

Now Probability of not solving the question by A, B and C are

PA (not solving a problem) - 1-1/3 = 2/3

PB (not solving a problem) - 1-1/4 = 3/4

PC (not solving a problem) - 1-1/5 = 4/5

ii) Probability of not solving - 2/3*3/4*4/5 = 2 *1/5 = 2/5

i) Probability of solving - 1- Probability of not solving

= 1 - 2/5 = 3/5

3 0
3 years ago
How does the ocean affect the weather and climate?
Rufina [12.5K]
If you live near the ocean, usually the weather is warmer than the inland because the jet stream has warm air coming from the equator and then that's why if you live near the California beaches, it's warmer . It also might being more fair weather to wear you live
6 0
3 years ago
What is the largest river that empties into the pacific ocean
Sunny_sXe [5.5K]

Answer:

the columbia river

Explanation:

god told me so lol

3 0
3 years ago
PLEAZE HELP!!!!! I MEED TO KNOW KNOW
amid [387]
A. The worm population would increase, because there are no predators to eat them up!
8 0
3 years ago
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