WiFi

 What is WiFi ?

You could check if there are two listed and remove both by Right-clicking the network icon, and select Network and Sharing Center, and then select Change adapter settings in the left pane. You will see WiFi 1 and 2 listed remove both restart the computer and connect again.

What is wifi 1 ?

The Standard IEEE 802.11ac is referred as WiFi 5. This WiFi standard is successor to IEEE 802. 11n ( i.e. WiFi 4 ) This is the first wifi standard in which beamforming has been added to the MIMO and multi-user MIMO feature are also introduced.

Mars

 Can we breathe in Mars ?

The atmosphere on Mars is mostly made of carbon dioxide. It is also 100 times thinner than the Earth's atmosphere, so even if it did have a similar composition to the air here, humans would be unable to breathe it to survive.

Because Earth is tectonically active, old crust continually melts into the mantle and forms new crust at plate boundaries, recycling water and other molecules back into the atmosphere through volcanism. Mars however, is mostly tectonically inactive, and so the " drying" of the surface, once it occurs, is permanent.\

Can we plant trees on Mars?

Growing a tree on Mars will surely fail with time. The Martian soil lacks nutrients for soil growth and the weather is too cold to grow a tree...... . 

Who is a spider and an insect?

 Spiders are not insects. Insects fall under the class Insects while spiders fall under the Arachnida class. An insect has six legs, two compound eyes, three body parts ( head, thorax, and segmented abdomen ) , two antennae, and generally four wings.

                                                       ( This picture is captured by myself )

Unlike insect, spider do not have antennae. Antennae are joint appendages that are mounted to an insect's head. These are used not just to feel, but also to taste and smell. Spiders also lack wings, and therefore cannot fly.

A  spider is in a group of Arthropods called arachnids. 

Birds Life Cycle

 While a hatchling is growing in the nest and being fed by its parents we call it nestling....... . An adult bird attracts a mate, builds a nest and raises young to start the cycle all over again. Some birds migrate or travel long distances as part of their life cycle. Other birds stay in one area throughout the seasons.

Which is the correct sequence for the life cycle of a bird ?

Egg, Baby bird, Grown bird

                                                 ( This pictures are captured by my self )

How many stages are there in a bird life cycle ?

7 Stages 

Hatchling 

A newborn bird is called a hatchling. It is mostly or entirely naked, and is totally helpless. Hatchling stay in the nest and cannot walk or perch.

Catfish

 Catfish are an order of teleost fish, the Silurformes. There are about 40 families in order. They are called catfish because their barbels look like the whiskers of a cat.... . The longest  is wels catfish, up to 4m (13ft)

What are special about Catfish ?

Catfish are a diverse group of ray-finned fish.... . One catfish can lay up to 4,000 eggs a year per pound of body weight. The catfish has over 27,000 taste buds. Young catfish are called " sac fry " because they still live off of the food supplied by the yolk sacs. 

                                         ( This picture is captured by myself from my pet fish tank )

Polar Blue Parrot Fish

 How big do polar parrot cichlids get ?

These Polar Blue Parrot Cichlids are thought to be hybrids of Parrot Cichlids and Convict Cichlids. We've heard the original hybrids occurred Taiwan. But now these fish live in aquariums, all over the world. Maximum Size: in aquariums, they can grow to be about 8" long.

Dorsal & Anal fin shape, Body shape, Fail & fin  color, Vent shape 

These are 4 features to identify male female in Polar Blue Parrot Fish 

( This picture is captured by myself from my pet fish tank )

Fish

A fish is considered as an aquatic animal. It only lives underwater. There are almost 20,000 species of fish. It also includes the groups of jawless fish,  sharks, bony fish, and many more with different shapes, sizes, and colors. The lifespan of fish is 20 years. Catfish has the most extended lifespan of 60 years and weighs up to 170 kilos.

Fishes from a large number of groups and reproduce by releasing large quantities of sperm and eggs into the water. Also, it would make sure the fertilization of eggs. Fish prefer to be in groups, known as a shoal. A shoal can contain millions of fish. A fish can lay thousands of eggs. However, a few fish would reach maturity level. The process in which a group of fish is swimming in the same direction is called schooling. Fishes use a different variety of noises for communication. They make shallow pitch sounds and use body parts like bladder and muscle vibration.

Fishes are mostly carnivorous, and they eat weeds and sea plants. Fishes play an essential role in various cultures. They have symbolic meanings in different regions.