# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 568 - 573 of 1732

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## Question number: 568

» Mathematics » Lines and Angles

### Question

If two lines are perpendicular to the third line then those lines are ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | Cannot be determined | |

b. | Parallel | |

c. | Perpendicular | |

d. | None of the above |

## Question number: 569

» Mathematics » Exponents and Powers

### Question

= ________

### Choices

Choice (4) | Response | |
---|---|---|

a. | 2 | |

b. | 0 | |

c. | - 1 | |

d. | 1 |

## Question number: 570

» Biology » Nutrition in Plants

### Question

From which part of the plant water and minerals are absorbed and distributed all over?

### Choices

Choice (4) | Response | |
---|---|---|

a. | Stems | |

b. | Stomata | |

c. | Roots | |

d. | Leaves |

## Question number: 571

» Mathematics » Integers

### Question

The identity element w. r. t addition in integers is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | -1 | |

b. | 1 | |

c. | 0 | |

d. | All of the above |

## Question number: 572

» Mathematics » Comparing Quantities

### Question

Of a certain sum, is invested at 5%, is invested at 5 % and the rest at 10%. If the SI for 2 years from all these investments amounts to Rs. 1400. Then the original sum was

### Choices

Choice (4) | Response | |
---|---|---|

a. | 20,000 Rs. | |

b. | 10,000 Rs. | |

c. | 12,000 Rs. | |

d. | 15,000 Rs. |

## Question number: 573

» Mathematics » Triangle and Properties

### Question

The top of a broken tree touches the ground at a distance of 12 m from its base. If the tree is broken at a height of 5 m from the ground, then the actual height of the tree is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 18 m | |

b. | 13 m | |

c. | 17 m | |

d. | 24 m |