Tag: science & technology

To solve this question, the user needs to have knowledge of our solar system and the number of planets in it.

Option A: This option is incorrect because there are only 8 planets in our solar system, not 11.

Option B: This option is correct. There are 9 planets in our solar system, including Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and the dwarf planet Pluto. However, in 2006, the International Astronomical Union (IAU) redefined the criteria for what constitutes a planet, and reclassified Pluto as a "dwarf planet." Therefore, there are currently only 8 planets in our solar system.

Option C: This option is incorrect because there are 8 planets in our solar system, not 11 or 8.

Option D: This option is incorrect because there are only 8 planets in our solar system, not 10.

The Answer is: C.

To answer this question, the user needs to know the origin of the name "Bluetooth".

Option A, Blue Whale, is incorrect. The name Bluetooth is not derived from a blue whale.

Option B, Harald Blatand, is correct. Bluetooth technology is named after Harald Blatand, who was a 10th-century king in Denmark. Blatand means "Bluetooth" in English, and he was known for his ability to unite different tribes and nations, just as Bluetooth technology allows different devices to communicate with each other.

Option C, Harold Bleacher, is incorrect. The name Bluetooth does not have anything to do with Harold Bleacher.

Option D, Bluetooth, is incorrect. Bluetooth technology is not named after itself.

Therefore, the answer is: B. Harald Blatand.

To answer this question, the user needs to know about the components of milk protein.

The correct answer is:

B. Casein

Explanation:

Milk protein is made up of two main types of protein: casein and whey protein. Casein is the most abundant protein in milk, making up about 80% of the protein content. It is a slow-digesting protein that is often used in protein supplements. Milkein, Malkein, and Kazien are not correct names for milk protein.

To solve this question, the user needs to have knowledge about different snake species and their reproductive behavior.

The snake species that nest and lay eggs and guard them until they hatch are called oviparous. The correct answer to this question is:

The Answer is: D. King Kobra

Explanation:

Out of the given options, King Kobra is the only oviparous snake species. The female King Kobra lays eggs in a nest made up of leaves and other debris, and she stays with the eggs, protecting them until they hatch. The incubation period for the eggs is around 60 days. In contrast, Black Mamba, Russel's Viper, and Gaboon Viper are all viviparous, which means they give birth to live young ones instead of laying eggs.