Which type of model is described below? A scientist thinks of the inside of a tree as being like a giant straw that can suck up water A. Atomic model B. Physical model C. Mathematical model D. Conceptual model​

Explanation:

●Tree-based models use a series of if-then rules to generate predictions from one or more decision trees. All tree-based models can be used for either regression (predicting numerical values) or classification (predicting categorical values). ... Decision trees, which are the foundation of all tree-based models.

●If there is a high non-linearity & complex relationship between dependent & independent variables, a tree model will outperform a classical regression method. If you need to build a model which is easy to explain to people, a decision tree model will always do better than a linear model.

●There are 3 steps involved in the building of a decision tree.

Splitting. The process of partitioning the data set into subsets. ...

Pruning. The shortening of branches of the tree. ...

Tree Selection. The process of finding the smallest tree that fits the data.

Hope it helps

B. Physical model

Explanation:

Out of the four of them this is the one that makes the most sense

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-