The three types of plate boundaries are ;
The divergent plate boundary ; This boundary is formed when tectonic plates move away from each other thereby forming new crust below the earth in the process
Convergent plate boundary ; This plate boundary is formed by the collision of two or more tectonic plates. If one of colliding plates is an Oceanic crust tectonic plate the collision will lead to a subduction
Transform plate boundary ; At this boundary tectonic plates slide pass one another without having any significant effect on the earth crust
Hence we can conclude that the three types of plate boundaries are ; Divergent , convergent and transform
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B. Telophase
C. Interphase
He observes the formation of a cell plate. He is observing the phase of the cell cycle Cytokinesis.
Mitosis is used to produce daughter cells that are genetically identical to the parent cells which produces two daughter cells from one parent cell, during it division,shorter cell cycles occur in early embryo cells this later result to the daughter cells been smaller than the mother cell in the embryonic cell cycles
Thus, option "A" is correct.
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Answer: True
Secondhand smoke is produced from the burning of the tobacco products such as cigars, cigarettes, bidis and pipes. This is smoke which is breathed out or exhaled by the smoking person. The smoke includes toxic gases. Smoking in the enclosed spaces such as homes, workplaces can be hazardous for the smoker as well as for the people present surrounding him or her. An appreciable amount of secondhand smoke in an enclosed space can cause ear infections, asthma attacks, respiratory attacks such as coughing, sneezing and labor breathing, respiratory infections such as pneumonia and bronchitis and a greater risk of sudden infant death is also associated with it.
On the basis of above description, the secondhand smoke is more dangerous in enclosed spaces is true.
True. Secondhand smoke, also known as passive or involuntary smoking, is more dangerous in enclosed spaces.
When someone smokes, the smoke released contains numerous harmful chemicals, including carcinogens, toxic particles, and gases. When this smoke is released into the air, it can linger and accumulate in enclosed spaces, leading to increased exposure for non-smokers in the vicinity.
In enclosed spaces like homes, cars, bars, restaurants, or other indoor areas with poor ventilation, the concentration of secondhand smoke can become significantly higher than in open, outdoor areas. Prolonged exposure to secondhand smoke in such environments poses serious health risks, particularly for vulnerable individuals such as infants, children, pregnant women, elderly people, and those with pre-existing respiratory or cardiovascular conditions.
Research has shown that secondhand smoke exposure can cause a wide range of health problems, including respiratory issues (such as asthma exacerbation and respiratory infections), heart disease, stroke, lung cancer, and even sudden infant death syndrome (SIDS) in infants.
To protect public health, many countries and regions have implemented smoking bans in enclosed public spaces and workplaces to reduce secondhand smoke exposure and its associated health risks. Encouraging smokers to smoke outdoors or in well-ventilated areas can help minimize the impact of secondhand smoke on non-smokers' health.
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b. they are made up of atoms
c. they are made up of elements
d. they are made up of molecules