Solution:
A train travels at 69 kilometers in 1 hours and then travels 98 kilometers in 5 hours.
(i)Total distance traveled = 69 + 98
= 167 kilometers
(ii) Total time taken to cover total distance = 5 + 1
= 6 hours
(iii) Average speed = total distance traveled divided by total time taken
= 167/ 6 = 27.83 kilometers per hour
If humans stop hunting , stop overgrazing then the kit fox population can be protected.
Explanation:
As we know that human beings are considered as most intelligent species , so it is the duty of the human beings to protect the animals. Human can protect the animals by reduction in hunting, by planting more trees, by reducing pollution.
Previously kit fox was considered as endangered species but later in the year 1971 it was considered as threatened species as there was destruction in habitat. Due to livestock grazing ,shrubs are being destroyed as a result there is fall in prey abundance and the kit foxes suffer due to lack of food.
Answer:
Statement 1.) Both saturated and unsaturated fats.
Statement 2.) Saturated fat
Statement 3.) Unsaturated fat
Statement 4.) Unsaturated fat
Statement 5.) Both saturated and unsaturated fats.
Statement 6.) Saturated fat.
Explanation:
Fatty acids are straight chain carbon compounds of varying lengths. It is an important component of lipid in plant and animals. All fats are known to contain nine calories per gram, therefore can add to the weight of an individual. There are two type of fatty acids which includes:
--> Saturated fatty acids: these are fatty acids that contains no double bonds making it solid at room temperature. They are usually found in animal products such as milk, cheese and meat. They are absorbed in the villi of small intestine after digestion. One of the disadvantages of consuming diet rich in saturated fat is Saturated fats might increase LDL cholesterol levels. These are the bad cholesterol which are affected by inhibiting the LDL receptor activities leading to its increase. This can lead to heart disease conditions.
--> Unsaturated fatty acids: These are fatty acids which may contain one or more double bonds making it liquid at room temperature. They are found in plant oil (omega 6) and fish oil (omega 3). When consumed, they are absorbed in the villi of small intestine and helps maintain a good balance of cholesterol in blood.
Carnivors eat meat herbivores eat plants and herbivores have smaller teeth because they don't chew meat
E = mc2 Meaning
At the beginning of the 20th century, the notion of mass underwent a radical revision. Mass lost its absoluteness. One of the striking results of Einstein’s theory of relativity is that mass and energy are equivalent and convertible one into the other. Equivalence of the mass and energy is described by Einstein’s famous formula E = mc2. In words, energy equals massmultiplied by the speed of light squared. Because the speed of light is a very large number, the formula implies that any small amount of matter contains a very large amount of energy. The mass of an object was seen to be equivalent to energy, to be interconvertible with energy, and to increase significantly at exceedingly high speeds near that of light. The total energy of an object was understood to comprise its rest mass as well as its increase of mass caused by increase in kinetic energy.
In special theory of relativity certain types of matter may be created or destroyed, but in all of these processes, the mass and energy associated with such matter remains unchanged in quantity. It was found the rest mass an atomic nucleus is measurably smaller than the sum of the rest masses of its constituent protons, neutrons and electrons. Mass was no longer considered unchangeable in the closed system. The difference is a measure of the nuclear binding energy which holds the nucleus together. According to the Einstein relationship (E = mc2) this binding energy is proportional to this mass difference and it is known as the mass defect.
