Answer:
Plate Tectonic theory
Explanation:
Plate tectonics is based on continental drift, and seafloor spreading the three pieces of evidence that support this are those given by Alfred Wagner
As the Jigsaw fit between continents that were one at some point in time.
As the polar wandering or the flight to poles i.e how continents are drifted way to poles by forces of wind.
Presence of the same flora and fauna and glacial valley formation that were once a part of the same continent of Pangea and Gondwana.
The hypothesis ultimately got replaced by seafloor spreading as the drawbacks of drift theory which would not give sufficient evidence for the spreading away of continents. Earth's tectonic forces and internal sources of energy i.e heat produced by radioactive decay was not emphasized and Alfred's continuous orogeny could not have been possible.
Extensive commercial logging, the use of wood for cooking and heating, and excessive clearing of land by subsistence farmers has led to __________________<span>in most areas of Sub-Saharan Africa.
</span>B)
<span>deforestation </span>
<u>Answer:</u>
A geothermal power plant is the alternative energy generation technology that requires burning fossil fuels to start generating electricity.
<u>Explanation:</u>
- A geothermal power plant derives its energy from the steam or from the heated up water that is present deep inside the surface of the Earth at some locations.
- The presence of steam or hot water at such locations is due to the heat available in the interiors of Earth.
- This heat is partially generated from the burning of fossil fuels that are present deep inside the Earth.
Answer:
As days grow longer in spring, robins suddenly develop an urge to move northward, to separate from other robins and live on a territory, and to build a nest and raise babies. But they can’t separate from every single robin! In order to raise babies, they need to choose one particular robin who they’ll allow on their territory to be their mate.
The first thing robins do in spring is to arrive on and claim a territory. We can easily observe males doing this; they sing as well as chase other males off the territory. Females are much quieter, but equally determined to defend their territory against other females.
Females arrive on territory a few days to a week behind the males. Most of the males’ territorial battles are over by then. Females probably select a territory by how good the habitat looks, but often notice the territory in the first place because of the male’s singing. When a female enters a male’s territory, he doesn’t chase her away. He does notice her, often singing even more. If she likes what she sees and hears, she starts looking around for a good place to build a nest. It turns out that even though robins are devoted mates, they first fell in love—not with each other but with the territory!
The mates stay closely bonded during the summer season. Each is responsible for certain jobs as they raise their babies. The female builds the nest, though the male often brings her some of the materials. He continues to sing as she lays the eggs and incubates them. When the babies hatch, both the parents get busy feeding them. When the babies fledge (leave the nest), both parents continue to follow them and feed them for a few days. But then the female gets busy building a new nest and laying new eggs. While she incubates the new brood, the male continues taking care of the older babies. He leads them to a stand of trees in the evening where they will roost with other robins. By the time the new eggs hatch, the older babies are ready to be on their own, and the male is able to help feed the new babies.
Answer and Explanation:
1. Harmful Algal Bloom abbreviated as 'HAB' can be hindered by numerous variables as follows:
- Precise distinguishing proof of HAB
- Right transfer of natural materials, appropriate ventilation
- Bringing down of overabundant nutrients
- Persistently checking of water quality
- Adding helpful microscopic organisms to the water and so forth.
2. Potential energy is put away inside an item suspended over the ground in light of the fact that during suspension it has no movement thus no Kinetic Energy but Potential energy is there.
3. The concentration of the Hydronium ion (
) in any solution is the deterministic factor of the extent of a solution's acidity or alkaline behavior.
4. Rain shadows are the landscape to regularly accommodate deserts to their down-wind regions.
A rain shadow is a dry area of land on a mountain run that is shielded from the predominant breezes.
5. Measure of precipitation and Temperature are two fundamental factors typically used to recognize areas of biomes.
