Which statement is true about the elements in the periodic table?
Elements in family 2 are all nonmetals.
Elements in period 4 are all metals.
Elements in period 6 have similar properties.
Elements in family 7 have similar properties.
(Please don't send a link to a different site and just tell me which one it is)

Answer:

a

Explanation:

Answer:

mixture

Explanation:

Both pitcher plant and king penguin use their physical adaptation to catch pray. The curved beak of the penguin helps them easily catch fish from snow similarly pitcher plant has the cup like structure to capture pray. Hence, option A is correct.

Pitfall traps, a prey-trapping mechanism with a deep hollow filled with digesting fluid, are modified leaves on a kind of carnivorous plants known as pitcher plants. Specialized leaves are used to create the traps in what are known as "genuine" pitcher plants. Using nectar, the plants draw in and suffocate their victim.

Flying, flying, or crawling insects that are out foraging are drawn to the hollow created by the cupped leaf by visual cues such nectar and anthocyanin colors.

Insects fall into the trap because the pitcher  is slippery after being saturated by dew or nectar. To aid in preventing escape, the walls of the pitfall may be covered in waxy scales, protruding aldehyde crystals, cuticular folds, downward-pointing hairs, or lunate cells that originate from guard cells.

The sharp curved beak of penguin helps to easily catch their pray. Therefore, option A is correct.

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Answer:

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.

hope this helps.

Answer:

I believe the answer is A

Answer:

A) the mass of the reactants is the same as the mass of the product

I guess

Explanation:

the law of conservation of mass stats that Mass of reactant is always equal to the Mass of the product

Answer:

Kinetic Energy can be defined as the energy possessed by the object by the virtue of its motion. The sum of these two energies is often called Mechanical Energy of the System. ... Electric Energy is also a form of these 2 energies: Electric potential energy stored in a charged particle in an electric field.

Explanation:

sorry if im wrong T-T

Answer:

A or D but I think MORE A

Explanation:

more like a than D

When a species becomes extinct all its genetic heritage is lost. Here The introduction of a toxic pollutant to the entire range of the species causes the extinction of the species and also the climate change. The correct options are A and D.

The process of evolution which leads to the disappearance of a population or species is defined as the extinction. The species evolve into new species in order ton adapt to the environmental changes in the genetic heritage.

The pollution from industries and vehicles will cause a drastic change in the level of oxygen in the atmosphere as well as water. This is responsible for the extinction of the most of the aquatic as well as terrestrial species.

Climate change is also an another factor which cause the destruction of the organisms. Many organisms are died due to global warming.

Thus the correct options are A and D.

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