Bacteria convert atmospheric nitrogen to which of the following in the process of nitrogen fixation?
question 1 options:

nitric acid

phosphorus

ammonia

nitrogen gas
question 2 (20 points)
question 2 unsaved

during which of the following steps of the water cycle is water changed from a vapor state to a liquid state?
question 2 options:

evaporation

precipitation

condensation

transpiration
question 3 (20 points)
question 3 unsaved

what impact can deforestation have on the water cycle?
question 3 options:

carbon dioxide is released into the air as trees are burned.

photosynthesis increases, thereby increasing the amount of carbon dioxide in the air.

transpiration declines.

the amount of nitrogen-fixing bacteria increases.
question 4 (20 points)
question 4 unsaved

which of the following is the source of energy for the water cycle?
question 4 options:

volcanic eruptions

the sun

winds

gravity
question 5 (20 points)
question 5 unsaved

why is nitrogen fixation such an important step in the nitrogen cycle?
question 5 options:

soil nitrogen is different.

plants can't use nitrogen in the form of n2.

bacteria convert the fixed nitrogen back into n2.

decomposers need to use nh4+.

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.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.