Q1) Bacteria are capable of converting atmospheric N in the form of N2 gas to NH3. this process is known as nitrogen fixation. N2 in the atmospheric form is not usable by other organisms, therefore specialised bacteria such as Azetobacter species are capable of carrying out this conversion from N2 gas into NH3 form that can be used by other organisms
Q2) Condensation.
Water in the gaseous state or known as vapour state converted to liquid state, process is known as condensation. in condensation the particles in water become more tightly packed and heat energy is removed from these particles reducing their kinetic energy thus becoming liquid state
Q3)
Transpiration declines
Deforestation is when the number of trees and plants have been cut down therefore numbers have reduced drastically, transpiration is the process in which water is transported through the plant and lost to the environment through evaporation. When the trees and plants have reduced the water lost by way of transpiration is also reduced. This impacts the water cycle as the number of water being cycled in the environment is lesser now.
Q4) the sun
sun is the major source of energy that facilitates the recycling of water in the water cycle. The sun causes water to be evaporated from water bodies and converted to water vapour. This water vapour is then recycled.
Q5) Plants can’t use Nitrogen in the form of N2
N is an essential element needed by plants, however plants cannot use up the atmospheric N2 gas. therefore bacteria are capable of nitrogen fixation that converts N2 gas into forms that can be used up and absorbed by the plants from soil.
Q1) The correct option is
Nitrogen Gas
Explanation:
The nitrogen cycle involves three major steps: nitrogen fixation, nitrification, and denitrification. Then the Nitrogen fixation is the process in which atmospheric nitrogen (N2) is reduced to NH3. Bacteria are responsible for this process which are known as nitrogen-fixing bacteria. These organisms convert nitrogen present in the soil to ammonia and after nitrogen has been fixed, other bacteria convert it into nitrate, in a process known as nitrification.
Q2) The correct option is
Explanation:
Condensation is the process of changing the physical state of matter from gas phase into liquid phase. This word most often refers to the water cycle. Condensation happens in two ways: Either the air is cooled to its dew point or it becomes so saturated with water vapor that it cannot hold any more water.
Q3) The correct answer is
Transpiration declines
Explanation:
There are two very important components of the water cycle which are evaporation and transpiration. These processes return water to the atmosphere as gaseous water vapor. Transpiration is the process by which moisture is taken through plants from roots to leaves, where it changes to vapor and is released to the atmosphere. So deforestation can affect the process of transpiration which is essential for water cycle.
Q4) The correct option is
The Sun
Explanation:
Sun is the major source of energy on the earth. When the sun heats the surface of water, it evaporates and ends up in the atmosphere as water vapor which we see as droplets. Then it cools and rises, becoming clouds, which eventually condense into water again.
Q5) The correct answer is
Plants can't use nitrogen in the form of N2.
Explanation:
Animals and plants cannot use atmospheric nitrogen directly therefore bacteria in the soil convert atmospheric nitrogen (N2 gas) into a form that plants can use. So we can say that nitrogen fixation such an important step in the nitrogen cycle.
