Explanation:
It is less dense when frozen than when it's a liquid.
Water freezes at 0°C, therefore the water molecules form a lattice crystalline structure maintained by hydrogen bonding. This Ice formed is less dense than water because the orientation of hydrogen bonds causes molecules of the ice to push farther apart hence lowering its density.
It takes a lot of energy to raise the temperature of water.
Specific heat capacity is the energy is takes to raise 1 mole of a substance to °C. For water, its specific heat capacity = 4.18 kJ/kg°C
Water molecules sticks to each other.
Forces of cohesion is the property of water molecules to stick to each other. Also, Hydrogen bonds are formed between adjacent water molecules because of the positive charged hydrogen end of one water molecule attracts the negative charged oxygen end of another water molecule.
It is a good solvent because both polar and nonpolar molecules dissolve in it.
Water is a univeral solvent because it dissolves a lot of solute unlike any other solvent. Water does not dissolve non-polar molecules because no hydrogen bond can be formed between them.
Answer:
4) increasing populations of native fish that feed on mosquito larvae in the swamps
Explanation:
The complete question is :
Communities have attempted to control the size of mosquito populations to prevent the spread of certain diseases such as malaria and encephalitis. Which control method is most likely to cause the least ecological damage ?
1) draining the swamps where mosquitoes breed
2) spraying swamps with chemical pesticides to kill mosquitoes
3) spraying oil over swamps to suffocate mosquito larvae
4) increasing populations of native fish that feed on mosquito larvae in the swamps
- The method by which the pests or the insects' are controlled by introducing their natural enemy in the environment to reduce their number is termed as biological control.
- The natural enemy can either be a predator, a parasite, a herbivore or any other organism that leads to a reduction in the number of the target organism.
- The advantage of using this method is that it circumvents the need to use artificial chemicals that cause harm to the environment as well as the other living organisms.
- I<em>n the given options, increasing the populations of native fish are the predators of mosquito larvae is an example of biological control and hence is the best option. </em>
From the question, yellow is dominant to green.
So the parents are yellow (Yy) and green (yy)
Cross Yy x yy
Punnet square (I can't put lines):
Y y
y Yy yy
y Yy yy
Phenotypes:
Yy: yellow
yy: green
So you'd see 1/2 yellow and 1/2 green
Answer: The roots will produce a weak acid that dissolves the rock and does two important things (at least as far as the plant is concerned. hope this helps you :)
Explanation: