A scientist needs to check several parameters before coming
to a conclusion about the amount of water pollution. The scientists needs to
check the amount of dissolved oxygen in the water, temperature of the water,
the clarity of the water, the PH level of the water and also the amount of
bacteria present in the water. There may be other criteria’s, but the mentioned
ones are enough to gauge the amount of pollution in the water. Scientists often
takes fish and aquatic plants from the water to be tested to check the amount
of pollution indirectly affecting these species.
In Ionic bonds, the metal loses electrons to become positively charged. Whereas the nonmetal electrons are negatively charged. In general, the ionic bonding is the complete transfer of electrons between atoms.
Answer: Option D) All of the above.
Explanation:
The ecosystem is made up of living and non-living component relating with their environment. i.e in an ecosystem, plants and animals relate with the food nutrients, climate and weather conditions, soil structure etc
Thus, all of the conditions: a rise in temperature; natural disaster like flooding; the introduction of a new animal species like a predator will definitely change the previously stable condition of an ecosystem.
The flow rate of water differs from honey due to the texture and thickness of the product. Honey’s thickness doesn’t allow it to move as quickly as the water, therefore affecting the flow rate.
We first consider the ideal gas equation,
PV = nRT
It is stated that the pressure and temperature are constant; moreover, R is already a constant. So, we get:
V = constant * n
This is the equation of direct proportion. Therefore, we get:
V/n = constant
V₁/n₁ = V₂/n₂
Substitute the values and solve for V₂
V₂ = (4 * 1.48) / 0.864
V₂ = 6.85
6.85 Liters of gas must be present at the end, so we need to add:
6.85 - 4 = 2.85 liters