Greek philosophers such as Democritus and Aristotle had ideas about the composition of matter. For example, Democritus believed matter was made of tiny, solid spheres that he called atomos, and Aristotle thought matter was made of earth, water, fire, and air. Aristotle's idea of matter was the accepted idea for over 2,000 years until John Dalton came up with a new theory about matter based on his experimental data. Which of the following best explains why Dalton’s theory became more widely-accepted over Aristotle's theory?Aristotle’s theory did not have enough direct evidence due to poor observational tools.


Dalton’s theory had repeated observations which were supported by extensive evidence.


Dalton’s theory was more complete because more respected scientists found the ideas possible.


Aristotle’s theory became the law of conservation of mass when he documented phase changes of matter.

Answer: plate tectonics

The plate tectonics is the theory in which the solid outer layer of the earth is composed of interconnected plates what move across the earth's surface. It is based on and incorporates the older theory of continental drift.

Answer:

Plate tectonic theory

Explanation:

Plate tectonic theory states that the earth contains numerous small and large lithospheric plates. These plates constantly moving from one place to another in three different ways such as

1) Convergent plate motion- here two plates move towards each other.

2) Divergent plate motion- here two plates move in the opposite direction, away from each other

3) Transform plate motion- here two plates slide passes each other.

This plate motion occurs due to the convection current that generates on the mantle because of the tremendous heat radiated from the core of the earth and this entire process is commonly known as the plate tectonic theory.

In the case of convergent plate motion, the denser plates get subducted beneath the lighter one and form a trench that appears to be a depression within the oceans and there forms a zone known as the subduction zone.

In the case of a divergent plate motion, it then forms a ridge, which later forms an ocean and the zone of separation of these two plates is known as the mid-oceanic ridge.

So a lot of ridges and subduction zones are present on earth.

Answer:

The answer is "D"

Explanation:

Answer: D

Explanation:

A) - Makes no sense, so no

B) - Experiments in laboratories must be controlled, so no.

C) - A laboratory is a regulated environment, so no.

D) - Only D makes sense, as it is true.

Answer: Loess is the fine grained material that has been transported and deposited by the wind.The answer isA.

Explanation:

Since the wind can carry these types of material (find grained) father than sand, and also higher up, they are generally found very far from their original place of origin.

Loess is no larger than 50 micrometers in size. It is coarse in texture like clay, but finer than a grain of salt.

Answer:

During meiosis 1, the parent cell with double the normal amount of chromosomes, splits into two diploid cells (have enough chromosomes to survive). During meiosis 2, the two diploid cells each split into two haploid cells (have half the amount of chromosomes to survive). Meiosis ends with four haploid cells.

Both Meiosis 1 and 2 have the same phases: Prophase, Metaphase, Anaphase and Telophase. One difference is that Meiosis 1 starts with a diploid cell and Meiosis 2 starts with 2 haploid cells, each with a homologous pair. ... Since there are no homologous pairs (only chromatids), recombination can not occur

Explanation:

just took the test and the answer is

they consist of many types of cells working together.

Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth. On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds. Their paths typically have a meandering shape.