Answer: Reducing the activation energy can increase the rate of a reaction.
Explanation:
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and convert to products leading to increased rate of reaction.
Thus a catalyst speeds up the reaction by decreasing the activation energy.
Answer:
Most of the training of animals is learned from <u>conditioned response</u>.
Explanation:
A conditioned response is a learned response to a previously neutral stimulus. This is achieved by pairing a neutral stimulus with an unconditioned stimulus, which doesn't require any conditioning to cause a reaction.
For example, the smell of food is an unconditioned stimulus that causes the feeling of hunger. This type of response to food is an unconditioned response. If we paired another stimulus, for example, the sound of a whistle, with the smell of food, this stimulus on its own would eventually start causing hunger. This makes the sound of the whistle the conditioned stimulus and feeling hungry after hearing the sound of the whistle the conditioned response.
Most of the animal training is based on this principle.
Answer:
high clean-energy startup costs
Explanation:
Protecting the environment means improving its sustainability and reducing pollution to the barest minimal. This utterly means terminating every activity that contributes to pollution in the environment, including the source of energy. The most widely used source of energy is the non-renewable source e.g. coal, fuel, etc.
These source of energy, however, release pollutants in form of greenhouse gases, into the environment. One way to eliminate the use of non-renewable source of energy is to adopt the use of renewable sources e.g. solar energy, wind etc. However, one major setback to doing this is the high production cost involved.
Although these sources of energy (renewable) are referred to as green or clean, but they have really expensive startup costs and are unaffordable most times.
http://1kai.dokkyomed.ac.jp/mammal/en/genus_list.html
