How well do you know the ocean floor?

How well do you know the ocean floor? - Quiz

Hi Everyone and welcome back to Green World!

Today we have another quiz to test your knowledge about the natural world. This is, of course, part of our monthly series of quizzes, so please give us some feedback on how you are finding it so far in the comments! This time, it's all about the ocean floor.

Questions

How much percent of the earth's surface consists of ocean floor?
a)50%
b) 60%
c) 70%
True or False? Just like on dry land, the ocean floor has mountains, plains and valleys.
Which ocean can the Mariana Trench be found?
a) Pacific Ocean
b) Altantic Ocean
c) Indian Ocean
True or False? The Mariana Trench is 11km deep.
How much of the earth's surface is covered by abyssal plains?
a) about 33%
b) about 50%
c) about 10%
True or False? Studies estimated that 90% of deep sea species haven't been discovered yet?
True or False? There is no life at the bottom of Challenger's Deep (the deepest part of the Marianna Trench)
Which are the three zones that the ocean can be split into known as?
a) shallow zone, medium zone and deep zone
b) sunlight zone, twilight zone and midnight zone
c) light zone, dusk zone and dark zone
True or False? There are lakes at the bottom of the ocean.
How many seamounts are believed to be over 3 000 feet tall?
a) 50 000
b) 100 000
c) 150 000

We hope this has been interesting and informative!

Your Green World Team💚

(answers below)

Answers

c) 70%
True
a) Pacific Ocean
True
b) about 50%
True
False
b) sunlight zone, twilight zone and midnight zone
True
b) 100 000

Sources

https://manoa.hawaii.edu/exploringourfluidearth/physical/ocean-floor/introduction-ocean-floor

https://education.nationalgeographic.org/resource/all-about-the-ocean/

https://en.wikipedia.org/wiki/Mariana_Trench

https://savethehighseas.org/deep-sea-habitats/

https://www.grunge.com/761574/things-we-know-about-the-bottom-of-the-ocean/

Image: This graphic is owned by a blog editor, and the images are from a copyright free site.

Comments

Anonymous05/03/2023, 23:14
Hi, great quiz and made us think about the ocean floor. We managed to get most of them correct, some by guess work!
ReplyDelete
Replies

Add comment

16.08.2020 Animal of the week: Elephant

Hello. On the 12th of August it was International Elephant Day, so we decided that this week's post should be about elephants. Elephants are the largest living land mammals. There are three types of elephant; the African bush elephant; the African forest elephant and the Asian elephant. African elephants have larger ears, whereas Asian elephants have smaller ears. Elephants use their trunks to breath, bring food and drink to their mouths and to grasp objects. Elephants' legs are like pillars. They carry the Elephant's massive weight. African bush elephants weigh 6000kg, Asian elephants weigh 4000kg and African forest elephants weigh 2700kg. Basically, they are very heavy.Elephants eat grasses, small plants, bushes, fruit, twigs, tree bark, and roots. Elephants can live up to 70 years old in the wild. They communicate by sight, touch and smell. Sadly, these wonderful mammals are in danger. African elephants are listed as vulne...

How well do you know the Arctic and the Antarctic? - Quiz

Welcome back to Green World, As announced last week, we're starting our new monthly series: quizzes! This post contains the questions, you have to write down the answers and compare them with the solutions right at the bottom of this post. Questions: True or False? The Arctic is not actually a land mass, it's a frozen ocean. How many people live in the Arctic circle? a) 500 000 b) 4 million c) 10 million True or False? Narwals don't actually have unicorn-like horns. That's just a legend. What percentage of the world's freshwater is frozen within the Arctic's ice? a) 10% b) 15% c) 20% True or False? The Arctic covers parts of 15 different countries. Scientists exploring Antarctica have measured winds of up to... a) 100 km/h b) 150km/h c) 200km/h True or False? The driest (natural) place on Earth is in Antarctica...

10 Animals on the edge of extinction - you did not know about No.2

The Kākāpō ~ New Zealand's green teddy bear-parrot The Kakapo is a bird mainly found in New Zealand. It is a rather curious creature, a pretty big, green, nocturnal parrot that cannot fly and looks like a mixture of a parrot, a penguin, an owl and a teddy bear. Kakapos are on the verge of extinction due to their peculiar breeding habits, predators, and hunters. They are flightless and nocturnal and are the biggest parrots in the world. They can also live for up to 120 years! History Like most living creatures, the number of Kakapos in New Zealand was healthy before humans arrived. They waddled across the islands like nothing else. However, when people came to New Zealand, they started hunting the Kakapo for its feathers, meat and skin. They also brought alien species such as rats, weasels or cats that posed a threat to which they were not accustomed to. Their survival "trick" (not really a new thing, maybe the Kakapos like it old-fashio...

10 animals on the edge of extinction you didn't know about no. 7 - tooth-billed pigeon

Hi everyone, We're back with another endangered animal. This time it's a pigeon, but not the kind that we're used to seeing in cities. The tooth-billes pigeon, didunculus strigirostris, is the only remaing species of the Didunculus genus and is one of the closest living relatives of the world-famous Dodo. The adults have chestnut coloured bodies and wings, a greenish head and neck with red skin around the eyes, reddish feet and an orange bill with a characteristic jagges tip (hence the name tooth-billed). They are 31-38cm long and weigh about 400g. The juveniles are duller with a brown head and a black bill. Tooth-billed pigeons are shy and are belived to live in small groups. These terrestrial birds are endemic to the islands of Upolu and Savai'i. They are Samoa's national bird and can be found on the local currency. In Samoa they are known as Manumea and are eaten on a local and national level, but not internationally. They ...

The life of ... a kangaroo

Welcome back to Green World, Today we're talking about a rather amazing animal that we've all heard of: the kangaroo. Kangaroos are marsupials. They have powerful back legs, short front legs and a strong tail for balance. Kangaroos can weigh up to 90kg and stand over 1.80m tall. They are probably best known for leaping about on their hind legs. And for good reason, grey kangaroos can cover 9 meters in a single bound and travel at more than 55km/h. Interestingly, red kangaroos use less energy when traveling at 10km/h than when traveling at 6.5km/h. All Kangaroos live in Australia, but different species inhabit different areas. Eastern grey kangaroos are found in eastern Australia and Tasmania. Western grey kangaroos are located on the southern coast and in the southwest of western Australia. Red kangaroos dwelll in the interior grasslands and desert while antilope kangaroos can be found on the plains of the tropical north. They l...

Announcement: Animal of the week

Private jets - are they really as bad as people say?

Hello everyone, On social media, they will be an uproar every few months because some celebrity used a private jet to get somewhere. Today, I'll be talking about whether these flights really are as bad as they seem or whether social media is just making a big deal out of nothing. Emissions: private jets vs public flights Private jets are 5 to 15 times worse than commercial flights per passenger. Also, private flights are normally not 4 hours long, some of them are only 20 to 30 minutes! These flights are worse because taking off and landing emit more greenhouse gases . With a flight that's only 20 or so minutes, you've only got 10 minutes at the most where you're actually flying 'normally'. So when it comes to emissions, private jets are very bad for the environment. Morals You can't talk about private jets without talking about the morals involved. The first moral problem with private jets is the people who use them....

The life of ... Atlantic salmon

Hello everyone, Today we're talking about Atlantic salmon. Atlantic salmon are found in the north Atlantic and the rivers that flow into it. They can grow up to a meter long and are classified as Least Concern by the IUCN . Atlantic salmon start their lives in rivers. The pea-sized eggs are laid in autumn and hatch in April or May. The tiny salmon are called alevins. They feed on aquatic invertabrates and eventually devolop into parr. Parr are easily recognised by destinictive patterns and markings on their flanks. After up to several years, the parr develop a silvery sheen. These replace those characteristic parr markings. Their bodies change in preparation for the salt water and they are now called smolts. They swim downstream with the current all the way to the ocean. In the deep sea waters, the smolts feed on crustaceans and small fish for 15-50 months. However they are hunted by a number of predators including, sharks, seals and of ...

Maria Sibylla Merian

Hello, Today we wanted to tell you all about Maria Sibylla Merian. Maria was born in Germany on 2nd April, 1647. Like many young girls at that time, she loved to paint. Every day she would gather flowers from her garden and paint them. Sometimes, the flowers would have caterpillars on them and she would paint them changing, day by day, into butterflies. At that time, not much was known about insects, and people thought that butterflies magically sprouted from the mud. Maria knew from what she had seen while she was painting, that this was not true, but no-one believed her. As time went by, Maria became a great watercolour artist. She wrote about her discoveries, but scientists only took books written in Latin seriously, and Maria wrote hers in German. When Maria and her daughter were living in Amsterdam, Maria found display cases in museums filled with exotic insects collected from South America. Maria thought that if she could study the bu...

Animals 26-30 in our '50 incredible animals' series

Hello, Welcome back. We're very sorry for missing last week's animals. We've all had a busy time with school work! 26. Blue glaucus Also known as the blue dragon, the blue glaucus is a type of sea slug. They are small, rarely growing longer than 3cm long. Their favourite food is probably the most bizarre thing about them, Portuguese man o' war. Now, for those of you who don't already know, the Portuguese man o' war is one of the most dangerous jellyfish in the world! Different sites have different opinions, but almost all agree that blue glaucus do not hunt the Portuguese man o' war, instead they feed on dead ones or nibble away at living one! But that's still rather impressive. 27. Shoebill Shoebills are very patient and able to stay still for hours. That's how they hunt. When a lungfish comes up for air, they often don't notice the shoebill standing there until it's too late. Shoebill...

Green World

Search This Blog